Which of the following soil pollutants is human-made, as opposed to naturally occurring?
O lead
O mercury
O petroleum hydrocarbons
O arsenic

Answers

Answer 1

Answer:

petroleum hydrocarbons

Explanation:

__________

Answer 2

Answer:

C. petroleum hydrocarbons

Explanation:

edge 2021


Related Questions

Which of the following is not an example of selective breeding?
A. Breeding fruit for taste and color.
B. A tiger's strength and speed.
C. Breeding cows for fertility and milk production
D. Wheat bred to produce more grain per plant.

Answers

Answer:

B

Explanation:

A tiger strength and speed is not an example of selective breeding.

HELPP IM BEING TIMED ILL GIVE BRAINLIEST ANSWER PLS. Describe the rate of changes caused by weathering and
erosion. What are the fast changes? What are the slow changes?
What causes changes in big areas? What causes changes in little
areas?

Answers

Rainfall and temperature can affect the rate in which rocks weather. High temperatures and greater rainfall increase the rate of chemical weathering. 2. Rocks in tropical regions exposed to abundant rainfall and hot temperatures weather much faster than similar rocks residing in cold, dry regions.

HELP ME PLZZ I REALLY NEED HELP WITH THIS AND PLZZ EXPLAIN HOW YOU GOT YOU ANSWER WHEN YOU ARE DONE!!

Answers

Answer:

B.

Explanation:

The organ system is composed of multiple organs that work together to carry out a function.

a cell is placed in a isotonic solution. How does the cell maintain homeostasis in the environment ?

Answers

Answer:

If a cell is placed in an isotonic solution, there will be no net flow of water into or out of the cell, and the cell's volume will remain stable. If the solute concentration outside the cell is the same as inside the cell, and the solutes cannot cross the membrane, then that solution is isotonic to the cell.

Explanation:

Mendel studied "factors" that allowed for physical characteristics, which can have alternate versions, to be passed onto offspring. What are these factors called?

Answers

Answer:

Traits

Explanation:

?!

Answer:

THE ANSWER IS phenotypes

Explanation:

JUST TOOK THE TEST ON EDG..

What do you think the term "ecological footprint" means?

Answers

Answer:

biologically productive land and sea area

Explanation:

What is a photostem plz hurry

Answers

a biochemical mechanism in plants/ chlorophyll absorbs light energy for photosynthesis.

Diffusion takes place

Answers

Answer:

yes

Explanation:

brainliest ???

Do it for the points i will report

Answers

Answer:

it's the 2nd one

Explanation:

your welcome

In the two step cellular process of transcription and translation
(A) chromosomes line up and then are pulled to opposite ends of the cell.
(B) stem cells develop in embryonic cells, which then form adult tissue cells.
(C) the DNA double helix is separated and then replicated to form two strands of DNA.
(D) a DNA sequence is copied to form an RNA sequence, and then copied to form a protein.

Answers

Answer:

The answer is D

A is cell division, B is some stage of pregnancy, and C is DNA replication.

describe one piece of evidence represented by the contour line on the map that indicates the north side of chimney bluffs is steep?

Answers

Incomplete question. Attached is the image of the map below.

Explanation:

From the map, we could notice the contour lines around the Chimney Bluff areas are closely packed together. In other words, the spacing between the contour lines is narrower than those found in other locations.

This assertion is accurate because it is a standard practice in many maps to indicate the steepness of an area by having the contour lines in close proximity.

Which refers to the sum of all the forces that act upon an object?

A. net force

B. absolute force

C. balanced force

D. positive force

Answers

Answer:

Net force

Explanation:

Net force is the vector sum of forces acting on a particle or body. The net force is a single force that replaces the effect of the original forces on the particle's motion. It gives the particle the same acceleration as all those actual forces together as described by the Newton's second law of motion.

Answer:

net force

Explanation:

Is human blood ever any color other than red?

Answers

Answer:

no

Explanation:

Human blood is red because of the protein hemoglobin. Hemoglobin contains a red-coloured compound called heme that’s important for carrying oxygen through your bloodstream

Sometimes blood can look blue through our skin, but its never blue. the reason we see blue is because blue light doesn't go as deep into kin as red. If the blood vessel is  deep, your eyes see more blue than red  light due to the blood’s absorption of red wavelengths.

17. Match the major types of cancer with the types of cells they occur in
Adenocarcinomas
a. The lowest layer of the epidermis (skin)
Basal cell carcinoma
b. upper layers of skin, the lining of stomach, lungs,
kidneys
Squamous cell carcinoma
c. melanin-producing cells of the skin
Sarcoma
d. immune cells in the blood (T cells, B cells, and
bone marrow)
Leukemia and lymphoma
e. bones, fat, blood vessels, tendons, ligaments
Multiple myeloma
1. cells that produce fluids (breast, colon)
Melanoma
g. plasma cells (a type of immune cells)​

Answers

LolsbdgsbcgcsnnsjzkmcjMCk

how to write a narrative story?​

Answers

Answer:

Start with action or dialogue.

Ask a question or set of questions.

Describe the setting so readers can imagine it.

Give background information that will interest readers.

Introduce yourself to readers in a surprising way.

Explanation:

Answer:

Narrative essays/stories are often anecdotal, experiential, and personal—allowing students to express themselves in a creative and, quite often, moving ways. So, in short, it's an essay about your life with details, events, etc.

Explanation:

Narrative essays/stories should include:

an introduction, plot, characters, setting, climax, and conclusion.must have a purpose; think of this as the thesis of your story.the essay should be written from a clear point of view; essays to be written from the standpoint of the author (you); however, this is not the sole perspective to be considered. Creativity in narrative essays oftentimes manifests itself in the form of authorial perspective. narrative essays are effective when the language is carefully, particularly, and artfully chosen. Use specific language to evoke specific emotions and senses in the reader. the use of the first person pronoun ‘I’ is welcomed; though it is welcomed it is not necessary—nor should it be overused for lack of clearer diction.have a clear introduction that sets the tone for the remainder of the essay. Do not leave the reader guessing about the purpose of your narrative; you are in control of the essay, so guide it where you desire (just make sure your audience can follow your lead).

I hope that this helps you! I know it was a lot to read, but it's worth it. Have a nice night! :D

3. State and explain Chargaff's rules.

Answers

Answer: Chargaff's rules state that DNA from any species of any organism should have a 1:1 stoichiometric ratio (base pair rule) of pyrimidine and purine bases and, more specifically, that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine.

Explanation:

Write a summary statement for saturated fats including whether they are solids or liquids at room temperature and weather they have all single carbon-to-carbon or at least one carbon-to-carbon bond

Answers

Answer:

A saturated fat is a type of fat in which the fatty acid chains have all or predominantly single bonds. A fat is made of two kinds of smaller molecules: glycerol and fatty acids. Fats are made of long chains of carbon atoms. Some carbon atoms are linked by single bonds and others are linked by double bonds. Double bonds can react with hydrogen to form single bonds. They are called saturated because the second bond is broken and each half of the bond is attached to a hydrogen atom.

Explanation:

Answer:

saturated fats consists of single covalent bond and they are solid at room temperature and their melting point increases with increasing chain length

hope it helps

Explanation:

shape of the smooth muscle cell​

Answers

Answer:

They are flat layers

Explanation:

However, smooth muscle fibers do not form thick ropes like skeletal muscles. Instead, they come together in smooth, usually flat layers.

define the term gene in your own word​

Answers

Answer: A gene is in your DNA

Explanation:

Answer:

Gene: a unit of DNA that is usually located on a chromosome and that controls the development of one or more traits and is the basic unit by which genetic information is passed from parent to offspring.

Why did the removal of wolves affect the entire Yellowstone ecosystem?
A. It changed the balance of many different interactions.
O B. The organisms in the ecosystem did not compete for resources.
C. Wolves were the only predators in the ecosystem.
D. The wolves were the only producers in the ecosystem.
HELP ME QUICKKK PLEASE

Answers

Answer:

A

Explanation:

Since Wolves were one of the main predators (not the ONLY one) prey started to over populate causing the vegetation population to decrease. Since the vegetation decreases so does the number of prey then as well as the number of predators.

The removal of wolves affecting the entire Yellowstone ecosystem is option "A" that is It changed the balance of many different interactions.

Here wolves act as a keystone species.

What are keystone species?

A keystone species is an organism that enables represent an entire ecosystem.

Without its keystone species, the ecosystem would be dramatically distinct or stop existing altogether.

Keystone species have low functional tedium.

Thus, option "A" that is It changed the balance of many different interactions.

To learn more about keystone species click here:

https://brainly.com/question/6868621

List four foods made by fermentation.​

Answers

Answer:

Sauerkraut

Cheese

Salami

Yogurt

Explanation:

"Fermentation is the breakdown of carbs like starch and sugar by bacteria and yeast and an ancient technique of preserving food."

The destruction of which transport vessel in the plant results in a faster death??​

Answers

Answer:

All of the following are plant adaptations to life on land except ... D) The genes for the synthesis of transport proteins were destroyed. ... A) Xylem tracheids and vessels fulfill their vital function only after their death. ... 51) Ignoring all other factors, what kind of day would result in the fastest delivery of water and minerals to ...

Explanation: MARK BRAINLIEST

Will give branliest

Which of the following is not an example of organic matter?

A. Seaweed

B. A dead animal

C. Coffee bean shells

D. Bagged fertilizers

Answers

Answer:

B dead animal

Explanation:

Answer:

Bagged fertilizers

Explanation:

How does CO2 level affect oxygen production?

Answers

Answer:

Grupa chemików z Uniwersytetu Środkowej Florydy pod kierownictwem profesora Fernando Uribe-Romo, odkryła sposób zamiany dwutlenku węgla w paliwo i tlen — naśladując naturalne procesy w jakich rośliny konsumują CO2, czyli fotosyntezę, która z dwutlenku węgla i wody produkuje węglowodany czyli paliwo dla organizmów żywych.

Explanation:

Answer:

Greater flow of oxygen corresponds to a higher rate of photosynthesis. but more co2 would make the oxygen lower because plants are producing co2.

Explanation:

Momentum explains how _____ travels.
A.) sound
B.) heat
C.) both of these
D.) none of these

Answers

Answer:

I think D

Explanation:

I think it’s none. I’m not very confident tho. But momentum wouldn’t rlly relate to sound and heat.

meiosis results in greater genetic variation than asexual reproduction because it-
A. is a lengthy process full of errors.
B. results in a greater number of offspring.
C. is more common in higher order species.
D. allows the recombination of genetic information.

Answers

Answer:

D. allows the recombination of genetic information.

Which of these groups contains single-celled organisms?

A. birds
В. plants
C. fungus
D. animals

Answers

Answer:

C. Fungus

Explanation:

The fungi kingdom includes both single cell and multicellular organisms. Single cell organisms in the fungi kingdom include yeasts and chytrids, or fossilized fungi. Most organisms within the plant and animal kingdoms are multicellular. The Largest Single-Celled Organism.

hope i helped

Answer:

C. fungus

Explanation:

Birds and animals are in the same category, and both have multiple cells.

Plants also have multiply cells.

And fungus can be single celled or multiple cells.

Hope this helps ya!!


Which of the following is NOT a function of a protein?

A)store and carry out the genetic code

B)building materials

C)control the rate of reactions and regulate cell processes (enzymes)

D)transport things in an out of cells (cell transport)

Answers

The storage + the transmission of genetic info are NOT done by proteins but by your DNA.

A would be your answer.

The answer is A
Protein does not carry genetic code but DNA does

What are the 3 main functions of this organ system?

Answers

Answer: Circulatory system, Cardiovascular system, and Digestive system.

Explanation:

Which is a correct statement about mutations?

A. Mutations are always bad.

B. Mutations ensure alleles never change.

C. Mutations increase variety in a population.

D. Mutations decrease variety in the population,

Answers

C. Because mutations are varieties
Other Questions
Inverse operations are mathematical operations that undo one another. Division is the inverse operation of multiplication. -2 6 = -12. -12 6 then "undoes" this multiplication, leaving us with a quotient of -2. Multiplication and division follow the same rules related to signs. A negative integer multiplied by a positive integer gives us a negative product. Similarly, a negative integer divided by a positive integer gives us a negative quotient. However, unlike multiplication, division is not commutative. If you change the order of the number you're dividing and the number you're dividing by, you will get a different quotient. Find the quotient: -54 9 = Given the function f(x) = -x2 7x + 18, determine the average rate of changeof the function over the interval 10 < x < -1. This work by Banksy is considered a non-traditional work and can be considered ___________ because of the emotional simulation or nontraditional methods and interpretation that challenges the audience view. I don't understand math please help me joe spent $15. he bought 2 cans of oil. abouthow many gallons of gasoline did he buy which statement best reflects the Loyalists fellings during the Revolutionary war? what coefficients used to balance chemical equation below? ___ Ag2O ----> ____ Ag + ___ O2 A 2,4,1B 2,2,2C 2,1,2D 1,1,1 Pedro usa ______ para secarse. la ropa la toalla el peine el jabn The candidate gained many votes due to her powerful and _____________ speech.a.informativeb.effectivec.assertived.persuasivePlease select the best answer from the choices providedABCDMark this and return Find p(4) p(x) = 3x - 9 Which of the following types of government is most likely to have a written constitution that can be amended? A. democracy B.monarchy C.dictatorship D. socialist republic Read the following sentence:We should probably call the neighbors about that barking dog running through their yard.PLZ PLZ PLZ PLZ HELP - Which of the following correctly describes the verbal and its function in this sentence? Barking is a present participle describing the dog. Barking is a gerund describing the dog. Running is a present participle describing the dog. Running is a past participle describing the dog. help neeeddded........ Potomac LLC purchased an automobile for $31,200 on August 5, 2020. What is Potomac's depreciation deduction for 2020 Michael has finished 25% of an art project that has taken him a total of 4 hours so far. If he continues to work at the same rate, how many hours will it take for him to complete the entire project? A box of dried fruit has 54 calories in 3 servings. How many calories are there per serving? Radical Republicans what is the value of the expression below (81^2)^1/8 Why was it okay for moms to work as a riveter when it had never been before? How do you think the war affected women afterward?HELP!??!!!!!! ASAPP!!!! :? 5s - (-6s 10) < 5s + 9 + 5s