<span>Most of the nitrogen gas in Earth's atmosphere comes from _____.
</span>
<span>
D. the breakdown of carbon dioxide</span>
Answer:
B.
Explanation:
Because a Longitudinal wave is a wave vibrating in the direction of propagation.
The answer is; D
The angle at which the sun rays strike the earth at the equator is more or less 90 degrees while you move towards the poles, it much less than this. This means that the unit of sunlight per surface area received at the equator is higher than that at the poles. This is why the equator is always warmer than the poles.
A-The composition of their cell walls
Explanation: plant cell walls components is glucose. Fungi cell will components is chitin