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:
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Answer:
The best answer is mountains and valleys
Explanation:
first option doesn't seem correct because it doesn't have one giant plateau. Instead it is multiple. so that option is incorrect.
second option is incorrect because there really is no evidence about plains and hills.
third option is incorrect for the same reason as second option.
The Fourth option is correct because Sub-saharan contains mountain ranges and multiple rift valleys.
(have a nice day and soon merry christmas or happy Hanukkah)
A. it moves freshwater more than 100 miles into the ocean
The correct answers among all the other choices are 2. desert terrain, 3. dry climate, and 5. petroleum reserves. <span>The countries of the Arabian Peninsula have these things in common. </span>Thank you for posting your question. I hope that this answer helped you. Let me know if you need more help.
It's A. I don't know why, but I got it right, so
