Sammie is using radiocarbon dating to determine the age of a sample of objects. Which best explains why radiocarbon dating can be used to determine the accurate age of these items?
A. They contain radioactive isotopes that decay at a constant rate.
B. They are made primarily of radioactive carbon that is easy to detect.
C. They give off radioactive isotopes when an electrical charge is applied.
D. They have been exposed to large amounts of radioactivity in the atmosphere.

Answers

Answer 1

Answer: I think the correct answer is A or B.

Explanation: But i highly suggest B

Answer 2

Radiocarbon  dating is a feasibe method because the isotopes involved  decay at a constant rate.

What is radiocarbon dating?

The term radiocarbon dating refers to the use of carbon in the establishment of the age of a sample. This is usually done by the use of carbon -14 isotope.

The reason why radiocarbon dating can be used to determine the accurate age of these items is that they contain radioactive isotopes that decay at a constant rate.

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Related Questions

HELP ASAP!!! (I WILL REPORT YOU IF YOU JOKE AROUND)

Answers

Answer:

The picture

Explanation:

5. What variables could you change in the virtual lab that would allow you to evaluate the
strength of your solutions and any proposed emergency response plans?

Answers

S-P wave interval is the variable which could help evaluate strength of solutions and proposed emergency response plans.

What is S-P wave interval?

This is referred to the difference in time between the first arrival of the P-wave and the S-wave.

In a virtual lab, it is the distance of the station from the emergency unit which helps evaluate the effectiveness.

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The diagram on the left shows the layers of Earth's atmosphere and how temperature changes with altitude. The diagram on the right shows the layers of Venus' atmosphere and how temperature changes with altitude. Both diagrams indicate the altitude below which 90% of each atmosphere's mass is located.


According to the diagrams, which of the following statements is true?
A.
90% of the mass of Venus' atmosphere is within 10 km of the surface.
B.
The upper part of Venus' troposphere is about 200°C colder than the upper part of Earth's.
C.
Venus' troposphere is several times thicker than Earth's troposphere.

Answers

b i think ??
sorry if wrong

According to the diagrams. the following statements which is true is the upper part of the Venus' troposphere is about 200°C colder than the upper part of the Earth's atmosphere. Thus, the correct option is B.

What is the relation between troposphere and temperature?

As the elevation increases, there is less air above us thus the pressure keeps on decreasing. As the pressure decreases, air molecules spread out further and expand in air, and the temperature of the atmosphere decreases.

Temperature of the atmosphere decreases with the increase in altitude because the troposphere is warmed from below, through the absorption and re-emission of incoming solar radiation by the Earth's surface, rather than it is being warmed from above through the incoming solar radiation.

According to the given diagram, the statement which is true is that the upper part of Venus' troposphere is about 200°C colder than the upper part of Earth's.

Therefore, the correct option is B.

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3. Which part of the finch has changed over time?

4. For each of these diagrams, write what type of food the beak shape is best suited for.

Answers

3. their beak has changed over time
4. A. Seeds B. Insects C. Buds/fruit D. Leaves :)

Answer:

Have a wonderful day!

Explanation:

Strands of DNA are tightly coiled in
A. DNA
B. Base pairs
C. Chromosomes
D. Mitochondria

Answers

Answer:

D. Mitochondria. Mitochondira is the powerhouse of the cell, where DNA is stored.

Explanation:

Once nutrients have been broken down through the process of cellular respiration, which of the following must also happen in order for an animal cell to maintain homeostasis?

A. The cell must take in sunlight.

B. The cell must remove wastes.

C. The cell must use up the energy molecules.

D. The cell must lower its operating temperature.

Answers

Answer:

A.

Explanation:

the answer is A! the cell must take in sunlight to maintain homeostasis

Which wave has the higher frequency A or B?

Answers

Answer:

wave b has the higher frequency

Answer:

b wave has the higher frequency

Observe: Switch to the Protist sample. Protists are unicellular organisms common in ponds On the MICROSCOPE tab, select the 100x radio button and focus the image.

Watch the motion of the protists at 100X and 400X. What structures allow each protist to move?
I REALLY NEED HELPP

Answers

Amoeba: pseudopodia
Euglena: flagellum
Paramecium:

Euglena, Amoeba and paramecium are unicellular organisms. Euglena moves by flagellates, Amoeba by pseudopods and paramecium moves using cilia.

What are unicellular organisms?

Unicellular organisms are lower level organisms having only one cell and an undeveloped nucleus. Most of them are aquatic lives and moves using some special organelles.

Amoeba moves by an arm-like structure emerging from its body and contains microtubules within the arms. Euglena is flagellated microorganism moving by flagella.

Paramecium is an aquatic unicellular microorganism having special whip like structure called cilia which moves it in back forth. Ciliary bodies are like oars to move in a direction.

Therefore, amoeba moves by pseudopodium, euglena moves by flagella's and paramecium moves by cilia.

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What evidence have you discovered to explain how cells are organized in the body, similar to the way dots in pointillism art is organized.

Answers

Answer:

it depends where the the muscle is located and what is the purpose

Explanation:

Give an example of how the environment can affect an organism’s phenotype

Answers

Answer: Environmental conditions, such as temperature and availability of nutrients can affect phenotypes. For example, temperature affects coat color in Siamese cats. ... Height in humans is a complex phenotype influenced by many genes, but it is also influenced by nutrition

Explanation: Hope this helps luv :)

which are characteristics of a eukaryotic cell? A. single cellular, has nucleus.
B. Multicellular, has nucleus.
C. single cellular, has no nucleus.
D. Multicellular, has no nucleus.

Answers

Answer:

A eukaryotic cell is much more complex than a prokaryotic cell. Eukaryotic cells usually make up more complex organisms and have organelles such as endoplasmic reticulum, Golgi apparatus, mitochondria, a nucleus, and lysosomes. A prokaryotic cell only has circular chromosomes and is much smaller than a eukaryotic cell. Most single celled organisms are prokaryotes.

Explanation:

B. Multicellular, has nucleus

can someone help me with this doc here is a peek of what it looks like only if you can help me answer yes no phony stuff if you can help me and you help me complete the doc i will create a question for you worth 50 points

Answers

Answer:

your answer is correct

Explanation:

all possible outcomes in the punnet square lead to MM, the extra big muscles phenotype. this is all correct

PLS HELP IF U ANSWER ALL THESE QUESTIONS CORRECTLY I WILL GIVE BRAINLYEST

1.A gene carries coded information for the production of a

A. Protein

B. Nucleotide

C. Golgi body

D. Lysosome


2.The entire genome (or, "the book of you") is contained inside the _________ of the cell.


A. Mitochondria


B. Cell wall


C. Nucleus


D. Lysosomes


3.Every cell of every living thing on earth contains all the information it needs to create and duplicate and make variations of:


A. itself


B. any other kind of cell


C. red blood cells


D. proteins

Answers

Answer:

1:A

2:C

3: B

Explanation:

Hello there!

1. A gene carries coded information for the production of a protein. Proteins are the building blocks of cells, so this makes sense!

2. The entire genome is contained within the nucleus of the cell.

3. Every cell of every living thing contains all the information it needs to create and duplicate and make variations of itself.

I hope this helps!!

List the 4 types of plant tropisms and give 1-2 examples of each type. Be sure to explain why each tropism helps the plant survive.

Answers

The answer is your a noob

How does the magma in underwater volcanoes in Hawaii form?

Answers

Answer:ike a blowtorch, the heat transforms deep rocks into oozy magma

Explanation:

Answer:

Like a blowtorch, the heat transforms deep rocks into oozy magma. The magma rises upward until it erupts onto the seafloor. When the sizzling lava (which is what magma is called when it erupts) hits the cooler water, it hardens into an underwater volcano, the heat transforms deep rocks into oozy magma

Explanation:

2. Use the list below to complete the following statements.

Florida panther rain temperature fossils
runoff wetlands pollutants technology
vehicles radios telephones
a. _____________________is the knowledge and tools we use to do difficult tasks.

b. ________________ and ____________________ are all examples of technology we use daily.

c. ___________________ is water that travels over the surface of the land during and after rain. It can carry and nutrients to waterways and disturb ecosystems.

d. When vehicles roll down the roads, the rubber that wears off the tires may run downhill during the next ______________________ .

e. Oil, gas, and other pollutants may pose a threat to Florida's lakes and ______________.

f. Greenhouse gases are chemicals emitted into the atmosphere that add to the overall increase in Earth's _____________________________.

g. Greenhouse gases are produced by burning _______________ fuels, which are the remains of living organisms.

h. When roads cross a habitat, they expose animals within the habitat to increased rates of death due to encounters with __________________________.

i. It is believed that the creation of isolated pockets of animals has likely contributed to the endangerment of the ___________________________.

Answers

Answer:

In the Explanation

Explanation:

a. technology

b. radios, telephones

c. runoff

d. rain

e. wetland

f.  temperature

g. fossil

h. vehicles

i. panther

Hope this is helpful!

In this exercise, we are completing statements by selecting appropriate words from the given list. Each statement requires us to choose the correct word or words that fit logically and accurately. By carefully reading each statement, we can identify the missing word or words and select the appropriate options from the given list.

a. Technology is the knowledge and tools we use to do difficult tasks.

b. Radios and telephones are all examples of technology we use daily.

c. Runoff is water that travels over the surface of the land during and after rain. It can carry pollutants and nutrients to waterways and disturb ecosystems.

d. When vehicles roll down the roads, the rubber that wears off the tires may run downhill during the next rain.

e. Oil, gas, and other pollutants may pose a threat to Florida's lakes and wetlands.

f. Greenhouse gases are chemicals emitted into the atmosphere that add to the overall increase in Earth's temperature.

g. Greenhouse gases are produced by burning fossil fuels, which are the remains of living organisms.

h. When roads cross a habitat, they expose animals within the habitat to increased rates of death due to encounters with vehicles.

i. It is believed that the creation of isolated pockets of animals has likely contributed to the endangerment of the Florida panther.

It is important to consider the context and meaning of each statement to choose the most suitable word or words from the list. Additionally, being familiar with the definitions and concepts related to the given words can help us accurately complete the statements.

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Identify which of Newton's Laws is being described in the examples below:

Answers

9. 2nd law
10. 1st law
11. 3rd law
12. 3rd law

Write your scientific argument about what caused the size of the orange-bellied parrot population to decrease. As you write, remember to: Clearly state your claim. You may choose to use one of the two claims below, or you can create your own. Use your strongest evidence from the Island Ecosystem Food Web or the Evidence Cards to support your claim. Use the Scientific Argument Sentence Starters and the Word Bank below to help you explain your thinking. Science Seminar Question: What was the main cause of the decrease in the size of the orange-bellied parrot population? The population decreased because . . . Claim 1: births decreased. Claim 2: deaths increased. Scientific Argument Sentence Starters. Describing Evidence: The evidence that supports my claim is... My first piece of evidence is... Another piece of evidence is... This evidence shows that... Describing how the evidence supports the claim: If [blank], then ... This is important because... Since [blank], then... Based on the evidence, I conclude that... This claim is stronger because... Word Bank consumer population indirect effect ecosystem population resource population energy storage molecule competition reproduction

Answers

Answer:

There are about 50 Orange-bellied Parrots remaining in the wild and a captive breeding population of around 320 individuals. The species is at risk of extinction in the wild in the near term. Current expertise suggests that habitat loss and degradation, particularly in the non-breeding range, has caused the decline.

Explanation:

How does the ocean interact with land and air?

Answers

Answer:

Explanation:

One way that the world’s ocean affects weather and climate is by playing an important role in keeping our planet warm. The majority of radiation from the sun is absorbed by the ocean, particularly in tropical waters around the equator, where the ocean acts like a massive, heat-retaining solar panel. Land areas also absorb some sunlight, and the atmosphere helps to retain heat that would otherwise quickly radiate into space after sunset.

The ocean doesn't just store solar radiation; it also helps to distribute heat around the globe. When water molecules are heated, they exchange freely with the air in a process called evaporation. Ocean water is constantly evaporating, increasing the temperature and humidity of the surrounding air to form rain and storms that are then carried by trade winds. In fact, almost all rain that falls on land starts off in the ocean. The tropics are particularly rainy because heat absorption, and thus ocean evaporation, is highest in this area.

Outside of Earth’s equatorial areas, weather patterns are driven largely by ocean currents. Currents are movements of ocean water in a continuous flow, created largely by surface winds but also partly by temperature and salinity gradients, Earth’s rotation, and tides. Major current systems typically flow clockwise in the northern hemisphere and counterclockwise in the southern hemisphere, in circular patterns that often trace the coastlines.

Ocean currents act much like a conveyor belt, transporting warm water and precipitation from the equator toward the poles and cold water from the poles back to the tropics. Thus, ocean currents regulate global climate, helping to counteract the uneven distribution of solar radiation reaching Earth’s surface. Without currents in the ocean, regional temperatures would be more extreme—super hot at the equator and frigid toward the poles—and much less of Earth’s land would be habitable.

Which factor is different between the tundra biome and a tundra ecosystem?
A. Soil moisture
B. Climate
C. Size
D. Type of plants

Answers

Answer:

its A. Soil Moisture

Explanation:

I thinks it’s C: Size correct me if I’m wrong

Which of the following does biodiversity NOT contribute to?

a
Food
b
Clothes
c
Wireless Internet
d
Medicine

Answers

in my opinion i would say c
I also say c wireless internet

PLEASE HELP ME QUICK!!! Which of the following human activities unbalances the carbon cycle by releasing extra carbon into the atmosphere? Choose all that apply.
burning fossil fuels
deforestation

planting trees

recycling & reusing things we would normally throw away
using vehicles that run on gas

using electric vehicles

Answers

Burning fossil fuels
Deforestation
Using vehicles that run on gas
If I’m wrong I’m so sorry
burning fossil fuels - this directly releases CO2
deforestation - the machines used release CO2
using gas cars - the cars release CO2

How do the different amounts of water that is available around the planet affect the amounts of salt in the world's oceans? ​

Answers

Answer:

MMMMM WE LIKE FREE POINTS

Explanation:

Which of the following is not a true statement:

Physical erosion can break rock apart.
Chemical erosion can break rocks apart.
Formation of stalactites is an example of chemical erosion.
Weathering and erosion can create soil.

Answers

Hello there, trinitibush!!

See, the formation of stalactites is not an example of erosion. Stalactites are an example of mineral deposits. Therefore, statement #3 must be false.

I really hope this helps you out!! :)

statement 3 is false

Photosynthesis is: A. A system of living things and their environment. B. The area where something lives.C. The process by which green plants and some other organisms use sunlight to synthesize food from carbon dioxide and water.

Answers

C. The process by which green plants and some other organisms use sunlight to synthesis food from carbon dioxide and water.
c
they use the suns energy and nutrients and distribute carbon dioxide back into the atmosphere

Please help. This test is timed and this course is way too hard. I will mark Brainliest if you have the best answer! No random answers though. Only answer if you actually know the answer. Or else I report you.

Which of these statements best contrasts the dangers of working with cows versus horses?


A. Cows are more territorial than horses, but horses are more protective.

B. Cows tend to react as a herd, but horses react more quickly to danger.

C. Horses are more naturally aggressive than cows, but cows weigh more.

D. Horses spook or startle quicker than cows do, but cows are more combative.

Answers

Answer: The answer is B

Explanation: Cows will react in a herd mentality whereas horses are more independent and will react accordingly.

It’s b Bc I took this test before

Drag each label to the correct location on the chart.

Determine whether each statement describes a V-Shaped Valley or a U-Shaped Valley.

1 formed by strong streams

2 formed from the erosive

3 action of glaciers

4 deeper than they are wide

5 form in mountainous regions

6 wider and more gradual base


Answers

Answer:

U- Shaped Valley:    

#3

#5

#6

V-Shaped Valley:

#1

#2

#4

Explanation:

just did the test

U-shaped valley include action of glaciers, form in mountainous region, and wider as well as more gradual base. V-shaped valley is formed by strong streams, erosive, and deeper than they are wide.

What is a valley?

Valleys are low-lying areas of land that have been eroded and washed away by the combined elements of gravity, water, and ice. Some dangle, while others are feeble. They are all in the shape of a "U" or "V."

Humongous frames of snow and ice slowly creep downhill, seeking the least resistance. As the glaciers seep, they start picking up rocks and grind away at the valley floor and sides, forming a "U" and transforming the "V" into a "U." When the glacier melts, it leaves a U-shaped valley where the snow flowed.

U-shaped valleys are formed by glaciers, have a wider and more gradual base, and are found in mountainous areas. Strong, erosive streams form a V-shaped valley that is deeper than it is wide.

Thus, V-shaped valley include options 1, 2, and 4. U-shaped valley is 3, 5, and 6.

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GIVING BRAINLIEST TO FIRST HELPFUL ANSWER!!

Jan drew a diagram to compare centipedes and millipedes.
Which belongs in the area labeled Y?
are active predators
have two pairs of legs on each segment
use specialized mouthparts to attach to hosts
use claws to inject venom

Answers

Answer: have two pairs of legs on each segment

Explanation: Hope this helps : )

Answer:

its B

Explanation:

How did the underwater volcano form?

Answers

Answer:

Underwater volcanoes form much like volcanoes on dry land by a process known as subduction.

Explanation:

This occurs as a result of tectonic plates which form the top layer of the Earth's mantle, just below the Earth's crust. They support the weight of the continents and the combined water of the seas.

Answer:

so ... underwater volcanoes form much like volcanoes on dry land, by a process known as subduction. This occurs as a result of the tectonic plates which form the top layer of the earth's mantle, just below the earth's crust. They support the weight of the continents and the combined water of the seas.

Explanation:

What parts of the Earth were involved?

Answers

Answer:

were involved in the like outside of the crust which is the land inbetween the atmosphere

Explanation:

Other Questions
For the following set of data, find the mean, median and mode.age of children Danielle babysits:6,9,2,4,3,6,5(3 Points)Mean = 4 years oldMean = 5 year oldMean = 9 years oldMode = 2 years oldMode = 6 years oldMode = 9 years oldMedian = 4 years oldMedian = 4.5 years oldMedian = 5 years old Where is the center of the distribution?-10 to 00 to 10O 10 to 2020 to 3030 to 40 The average final exam score for the statistics course is 77% and the standard deviation is 8%. A professor wants to see if the average exam score will be higher for students who are given colored pens on the first day of class. The final exam scores for the 17 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the population is normal. 75, 78, 74, 89, 76, 92, 81, 87, 77, 79, 75, 81, 52, 80, 98, 72, 78 What can be concluded at the 0.05 level of significance Find the distance between the set of points (-4,5) and (4,0) 2+2x+x2 but x=5 need help What was peculiar about the stranger that showed up at the Fosters' gate? which of the following best fills-in the blank? Miss fuentes has a new team leader blank tomorrow how did william edward scott differ from locke? Nearly 65% of these were purchased on credit by 1928?A. national printB. carsC. CoolidgeD. advertising6. Companies began running these type of advertising campaigns to reach people all over America?A. national printB. carsC. CoolidgeD. advertising The kidneys help the body preserve water. When an animal has not had enough to drink, the kidneys signal the body to absorb water. The animal produces little urine, so it loses less water. During this process, the kidneys work in conjunction with which body system? yeah i need help anyone? The DNA sequence CAT would be transcribed into which mRNA codon? What does beans want to do when Palmer catches up with them Write the correct form of the verb according to the subject.Yo ______________ ingls y espaol. (comprender)Ellos siempre ______________ hamburguesas y papas fritas. (comer)Felipe nunca ________ la tele. (ver)El estudiante __________ en clase. (leer)T ___________ en la clase de educacin fsica. (correr)Nosotros ___________ todos los das. (escribir)Uds. _________ muchos libros. (leer)Juan ___________ huevos con jamn. (comer)Yo nunca ______________ ni leche ni limonada. (beber)Jasmn y yo __________agua todos los das. (beber)Christin y Martn __________ el almuerzo. (compartir) PLEASE HELP ITS DUE SOON!!He looked solid like an oar, whereas Jesse--well, he was like water: thin and quickThis is from The book Tuck Everlasting, Which figurative language is this?A-Not figurative languageB-SimileC-IdiomD-PersonificationE-Metaphor How can fossils be used to determine the relative ages of rock layers? do you think the 18th amendment intruded on Americans personal lives too much? A rectangles length is three times its width, w. Its area is 243 square units. Which equation can be used to find the width of the rectangle?a. w2 = 3(243)b. 3w2 = 243c. 4w2 = 243d. 3w2 = 3(243)please im on a timed test Both zines and blogs:O A. cost little to no money to create.O B. are read on the Internet.O C. allow readers to interact with each other.O D. have unlimited readers. give me examples that is related to affection 4 only