Answer:
it nitro(N) accounts for 70% of the earth's atmosphere
Explanation:
<span>Weather occurs in Earth's troposphere, which is "Lowermost layer" of the the Earth
Hope this helps!</span>
Photosynthesis uses carbon and h20 as the reactants
Answer:
Disease and Famine
Explanation:
If there is a disease that affects a type of plant, having other types of crops to rely on could save one from starvation. Also, only planting one crop in an area can change the pH and nitrogen levels in negative ways, so that eventually no plants can grow there. Not to mention the obvious balanced diet needed for a healthy body.
<span>Sweep prey organisms, along with some water, through the oral groove, and into the mouth opening. </span>