Organic manure adds organic matter called ____________ to the soil, which restores the soil texture for better retention of water and aeration of soil.
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Q4
Question 1
Tick the most suitable answer.
In addition to the rock particles, the soil contains ___.
(i) air and water
(ii) water and plants
(iii) minerals, organic matter, air and water
(iv) water, air, and plants
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Q5
______________is dark -colored partially decayed organic matter rich in nutrients . It makes the soil _________ there by , increasing its air and water holding capacity.