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
Q2. Indians and Africans were considered black. Some Americans were even considered black too.
<span>hydrosphere should be yor answer</span>
Physically, we would feel very less gravity, so we can travel, by our own body force, we would feel very less weight on our body.
Emotionally, it would be my best moment.... i'll just forget about countries on the Earth & think like a citizen (Human) on Earth
Hope this helps!
Jupiter and Saturn are the 2 biggest planets in our solar system but there are millions on planets that are bigger.
