PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

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22. Question based on Higher Order Thinking Skills (HOTS) III

3 m.

Look at the diagram given below and answer the following questions.

Soil fertility is increased by bacteria. How?

a. A dark-coloured, organic material formed by microorganisms acting on these dead and decaying plant parts is called _________.

b. Humus _________ as it contains mineral salts that mix with the soil.

c. Plants such as _________ and bacteria like _________ are also widely used in agriculture to fix nitrogen in the soil.

Did you find an error?