Answer:
They release oxygen so we can breathe
Answer:
adds DNA taken in form its environment.
Answer: Young rivers are channels that are deeper than they are wide, have a very fast flow, and contain frequent waterfalls and rapids
Answer:
C. Troposphere
Explanation:
It works a lot like sunscreen, blocking out harmful ultraviolet (UV) rays from the sun. ... Most ozone is found below a 30 mile (48 km) height. ... And considering without an atmosphere we'd all die, it's kind of important to ... From the Earth's surface through the bottom layer of atmosphere, called the troposphere, temperature .
