Question

ii) What is manure?

a)a substance derived from animals and plants.

b)the soil particles to form soil crumbs.

c)a combination of nitrogen, phosphate and​

Answer 1

Answer:

1) Manure is organic matter that is used as organic fertilizer in agriculture. Most manure consists of animal feces; other sources include compost and green manure.

Humus is the dark, organic material formed in the soil when plant and animal matter decays.

It is important as it retains-

1)  Moisture content in the soil.

2) Loosens the soil which allows better aeration and drainage.

3) It encourages the increase of soil organisms which help make nutrients available to plants. 

4) It makes the soil more porous.

5) High humus content increases water holding capacity of the soil.

So, the correct answer is 'It improves the texture of the soil'.

3) It cements together the soil particles to form soil crumbs. The crumb structure is a desirable condition of cultivated soil. The addition of manure to soil will increase the inorganic and humus content which helps to prevent soil erosion and loss of plant nutrients when it rains.

4)That's where fertilizer comes in. Nitrogen, phosphorus and potassium, or NPK, are the “Big 3” primary nutrients in commercial fertilizers.

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Answer 2

A) is the right answer I’m guessing