polar ice and grass land because
Answer:
sun
Explanation:
it gives energy to all things. light energy.
Answer: In the atmosphere, nitrogen exists as a gas (N2), but in the soils it exists as nitrogen oxide, NO, and nitrogen dioxide, NO2, and when used as a fertilizer, can be found in other forms, such as ammonia, NH3, which can be processed even further into a different fertilizer, ammonium nitrate, or NH4NO3.
Explanation:
Answer:
False
Explanation:
it can be used to date stuff up to about 50000 years, so i'd say that its halfly false, so false is correct :)
