Importance of Soil in Agriculture

Q. In the floating test, the damaged seeds ________.

1. sink
2. float
3. swell
4. shrink

Q.

what is the role of adding organic matter to the soil used for crop cultivation?

Q. The excessive use of ______ makes the soil less fertile.

1. nutrients
2. manure
3. humus
4. fertiliser

Q. Enrichment of soil with nutrients is called as:

1. Soil replenishment
2. Vermicomposting
3. Crop rotation
4. Weeding

Q. The decomposed plant and animal waste is used as _____.

1. wet waste
2. manure
3. humus
4. fertiliser

Q. Identify the given images and give the most appropriate title.

1. 
2. 
3. 
4. 

Q. Match the following agricultural tasks with their respective implements and select the correct option.​

	Agricultural tasks		Implements​
(a)	Tilling	(i)	Combine
(b)	Sowing	(ii)	Trowel
(c)	Irrigation	(iii)	Seed drill
(d)	Weeding	(iv)	Plough​
(e)	Harvesting​	(v)	Sprinkler

1. (a)-(v), (b)-(ii), (c)-(iv), (d)-(i), (e)-(iii)​
2. (a)-(ii), (b)-(iii), (c)-(v), (d)-(iv), (e)-(i)​
3. (a)-(iii), (b)-(iv), (c)-(v), (d)-(i), (e)-(ii)​
4. (a)-(iv), (b)-(iii), (c)-(v), (d)-(ii), (e)-(i)​