Answer: It is important to control the variables so the evidence from the experiment are as accurate as possible.
Ozone is a gas in the atmosphere that protects everything living on the Earth from harmful ultraviolet (or UV for short) rays from the Sun
I think it's C. Because hibernation is usually for animals living in Continental climates. I basically just eliminated the other answers until I got that one. One example for animals living in cold climates burrowing are Arctic Foxes.
Answer:
Explanation:
Continents are the seven main divisions of land on Earth. A continental shelf extends from the coastline of a continent to a drop-off point called the shelf break. From the break, the shelf descends toward the deep ocean floor in what is called the continental slope.
This is false because people could use way much water