They give us informations about our ancestors and how did they live and what did they do and than compare it to present way's of life.
Bacteria are required or needed in the nitrogen cycle because other living properties cannot use atmospheric nitrogen.
<h3>What is the nitrogen cycle?</h3>
The nitrogen cycle is the sequence of operations by which nitrogen and its mixtures are interconverted in the environment.
In living organisms, It considers nitrogen fixation and pollution.
As regards Nitrogen fixation is affected, just bacteria are competent to improve atmospheric nitrogen into structures usable by other living organisms.
In nitrogen fixation, the atomic nitrogen is converted into chemical forms functional by plants and convert atmospheric nitrogen into chemical forms functional by plants.
Therefore, option A is correct.
Learn more about the nitrogen cycle, refer to:
brainly.com/question/9243222
Tum h o kon aur meri tarah kyun bani hui h o aur
Its that first one ... he diversified the turkish economy by introducing manfacturing .. this was a question on a quiz so i know its right.
Answer:
1
Explanation:
Air pressure gets lower the higher you go
