Question

Ques 2. Describe the role of bacteria in fertility of soil.
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Answer 1

Answer:

Bacteria increase soil fertility through nutrient recycling such as carbon, nitrogen, sulphur and phosphorus. Bacteria decompose dead organic matter and release simple compounds in the soil, which can be taken up by plants. They also improve soil structure and increase the water-holding capacity of the soil.

Answer 2

Answer:-

• Most are decomposers that consume simple carbon compounds, such as root exudates and fresh plant litter.
• By this process, bacteria convert energy in soil organic matter into forms useful to the rest of the organisms in the soil food web.
• A number of decomposers can break down pesticides and pollutants in soil.

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