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One of the useful activities of several ...

One of the useful activities of several bacteria is
(a) Nitrification
(b) Biogeochemical cycles
(c) Nitrogen fixation
(d) Sulphurification

A

Nitrification

B

Biogeochemical cycles

C

Nitrogen fixation

D

Sulphurification.

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding the useful activities of several bacteria, we will analyze each option provided: 1. **Understanding the Question**: The question asks for one of the useful activities of several bacteria. We need to identify which of the given options is primarily associated with beneficial functions performed by bacteria. 2. **Analyzing Each Option**: - **(a) Nitrification**: This process involves the conversion of ammonia into nitrites and then into nitrates. While important, nitrification is dependent on the initial process of nitrogen fixation. Therefore, it is not the primary useful activity of bacteria. - **(b) Biogeochemical cycles**: These cycles involve the movement of chemical elements and compounds between living organisms and the environment. While bacteria play a role in these cycles, their contribution is often not as significant as the primary processes they perform, such as nitrogen fixation. - **(c) Nitrogen fixation**: This is the process by which certain bacteria convert atmospheric nitrogen (N₂) into ammonia (NH₃) or related compounds. This is a crucial process for the ecosystem, as it allows nitrogen to be utilized by plants, making it the most significant and useful activity of bacteria. - **(d) Sulphurification**: This process involves the conversion of sulfate into sulfide, which is also important, but it is not as widely recognized as nitrogen fixation in terms of its usefulness to the ecosystem. 3. **Conclusion**: After analyzing all the options, we determine that the most useful activity of several bacteria is **(c) Nitrogen fixation**. ### Final Answer: **(c) Nitrogen fixation**
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