Help me with this plsssss if u get it right u get brainlist PLS HELP

Answer:

3rd one

Explanation:

please help with will give brainilist
1 What is the most likely meaning of concentration
A thinking about one thing in a focused way
B amount of a substance found in water
C area where something comes from
D chance to be found

2 How could point source pollution best be described?
A Soap suds from washing a car flow into a storm drain.
B Water moves across the watershed, picking up natural or human-made pollutants.
C Chemicals or other contaminants flow into the streams from an obvious and identifiable source.
D Bacteria enters the water from animal waste that is left behind when someone is walking a dog.

3 What could be an easy way to prevent non-point source pollution?
A Let someone else wash your car.
B Keep businesses and industries from disposing of hazardous chemicals.
C Farmers can make sure that waste treatment tanks do not spill or leak into the groundwater.
D Don't use too much fertilizer on your yard. When it rains, there won't be any excess to run off into a storm drain.

4 What percentage of Earth's water is NOT liquid, fresh water that is available for us to drink and use.
A 99%
B 97%
C 3%
D 1%

5 The lake near a small city has become polluted. One group blames the local factory for the pollution. The factory claims that non-point source pollution from the growing city population is to blame.
Which of these tests would NOT help local citizens figure out if the pollution was from a point source or non-point source?
A Compare samples from different places around the lake.
B Observe the areas where water leaves the factory.
C Laboratory analysis to find out what pollutants are in the water.
D Examine the wildlife of the lake to see how it is affected by the pollution.

6 A community is concerned that its river has become polluted. Analysis of water samples shows small amounts of over 20 different chemicals. Which of the following is the most likely cause for the increase in pollution?
A The increase is due to agricultural point source pollution.
B The increase is due to industrial point source pollution.
C The increase is due to residential non-point source pollution.
D It is impossible to determine.

PLZ HELP ME!

What is the best description of chromosomes by the end of anaphase II of meiosis?

1.The chromosomes coil and become more compact.


2.The chromosomes split apart at the centromere.


3.The chromosomes reach opposite sides of the cell, incorporating into two haploid nuclei.


4.The chromosomes line up in the middle of the cell.

anyone could help it would be great

Match each sound wave property with its observable effect.

*Answers may be used more than once.
Properties:
amplitude
wavelength
frequency
Observable Effects:
volume
pitch

Answer this question (30 points),
Describe the order of the cell cycle and what happens during interphase, mitosis, and cytokinesis. (Must include all; Must make sense!)

Red and white blood cells are produced inside the __________ of bones. This is an interaction between the skeletal, circulatory, and immune systems.

A. Marrow
B. Spongy Bone
C. Compact Bone
D. Liver

1
The National Aeronautics and Space Administration (NASA) has designed many robots to help astronauts explore space. Some robots drive around like cars, some are just large arms, and some look like humans. All of these robots can accomplish tasks in space that are too difficult or dangerous for astronauts to do alone.

2

The most famous NASA robots are called the Mars rovers. According to NASA, the wheeled rovers are part of the Mars Exploration Program, “a long-term effort of robotic exploration of the red planet.” The newest rover, Curiosity, landed on Mars in August 2012. The size of a small car, Curiosity carries advanced equipment to analyze the soil and air on Mars. Curiosity has made many exciting discoveries about the planet's environment. Most importantly, it discovered that Mars contains the right ingredients to support life, including carbon, oxygen, and water. Curiosity has also found that astronauts on Mars would be exposed to dangerous levels of radiation. This discovery will help NASA protect its astronauts when they one day travel to Mars.

3

NASA is also building other robots. For example, the Robonaut2 looks like the upper half of a human. The human hand is a very complex and useful tool. It might seem easy for a person to press a button, grasp and lift an object, or turn a knob, but these tasks are very hard for a robot. However, a robot that could perform these tasks would be very useful to astronauts. The Robonaut2 is now being tested at the International Space Station (ISS). Eventually, NASA wants to add legs or wheels to the Robonaut2, which would allow it to move around outside the ISS.

4

Another robot on the ISS is a massive arm called Canadarm2. It can do repair work and transport objects too big for humans to move. Canadarm2 has even caught the Hubble telescope to allow astronauts to repair it. As technology develops, NASA will increasingly rely on robots. They will guide astronauts in new places, give them medical care, and do dangerous work for them. With their special equipment and considerable strength, robots can help humans explore new worlds.


Which sentence BEST explains how the author develops the central idea?

A.
He describes three different NASA robots and the work they do to support NASA.

B.
He explains how the Mars rovers are capable of important tasks like analyzing soil and air.

C.
He describes how NASA robots have human features that can do the work humans did in the past.

D.
He explains NASA's long term goals to incorporate more robotics in space exploration.






Which sentence BEST explains how the author develops the central idea?

A.
He describes three different NASA robots and the work they do to support NASA.

B.
He explains how the Mars rovers are capable of important tasks like analyzing soil and air.

C.
He describes how NASA robots have human features that can do the work humans did in the past.

D.
He explains NASA's long term goals to incorporate more robotics in space exploration.

PLZZ

Which is NOT a characteristic of a vertebrate?

A-have blood

B-have exoskeleton

C-have a nervous system

D-have backbone

E-have protective skin covering

Evidence: Scientists found that the runners who sprinted the fastest had the highest amount of ACTN3 protein molecules in their bodies.
Do you think that this evidence shows that the ACTN3 protein determines running ability? Explain your ideas using the words protein, trait, and feature in your response.

help me w this please

I need 9 examples of Egg-Retaining Animals.

Which of the following sets of equipment can be used to analyze the effects of human activity on a watershed?

A) Water testing kit, triple beam balance
B) Water testing kit, beaker, hotplate
C) Hotplate, beaker, graduated cylinder
D) Water testing kit, hand lens, notebook

What is Hemoglobin? Where is it found? What part does it play in the color of blood?

Think of one wild plant or animal species that lives near your home. Do you think that organism is native to
the local habitat? If it is, what steps could you take to protect it? If it is not, how would removing it affect
other organisms in the area?

“Coronavirus Is Mutating”, what could be the reason for it? (Research) and tell your answer in your own simple words

Please write 1–2 sentences relating the water cycle and wind to temperature and precipitation.
Quickly please

Describe the process of decomposition during hurricane sandy. no links

What two Units do Astronomers use to calculate Distance to Stars

Edge notes
I took notes on the climate section so hope it helps

EXPLAIN THE ANSWER AND I WILL GIVE BRAINLIEST:

Scientists are concerned about the overuse of antibiotics because it could lead to certain diseases becoming ________________ to these drugs.

A. Vulnerable
B. Resistant
C. Larger
D. Vaccine

Please answer this question for branliest tysm

Help please? Im stuck.
Just say A, B, C, or D. Thanks!

What is one-way water moves through the nonliving parts of an ecosystem during the water cycle?
A. Sweating
B. Evaporation
C. Photosynthesis
D. Transpiration

Describe the process of decomposition. (hurricane sandy 2012)

PLEASE HELP WILL GIVE BRAINLIEST!! Please please only answer if you know or can help!! I need help know if what i already put is correct or how i can fix it and also the answer to question E. THANK YOU!

Can someone help me with this question ill give you brainliest

can i get some help with these 3 questions .

Which of the following organisms will be connected to primary consumers in a food web?
herbivores
producers
phytoplankton
plants

Explain how the behavior of solitary bees and social bees increases their chances of reproductive success.