I believe your answer would be A- Farmers and urban dwellers.
Hope this helps. Correct me if I'm wrong.
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
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Your question: What physical feature marks the eastern boundary of the cultural subregion known as European Russia..?
Your answer: The Ural Mountains physical feature marks the Eastern boundary o f the cultural subregion known as European Russia.
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Answer:
Uses symbols
Are a good resource for long-range planning
Are used by meteorologists to create other maps
Explanation:
Answer:
Desert Scrub.
Explanation:
Desert Scrub normally refers to a desert biome. However, it can also be used to describe several types of plants that grow on these habitats, such as the creosote bush or the rabbitbrush, and others.
These types of plants are capable of withstanding environments with very little precipitation like the southwest and central regions of Asia, which is mostly covered by great extensions of desert biome.