Question

Q4. Choose the correct option:
1. Which of the following is/are post harvesting technique(s)?
(a) Winnowing
(c) Storage of food grains
(b) Threshing
(d) All of these
2. NPK fertilizers contains
(a)Nitrogen Potassium & Calcium (c) Nitrogen, Phosphorus &
Potassium
(b)Nitrogen, Potassium & Phosphorus (d) Nitrogen, Phosphorus
& Keratin
3. Manual removal of weeds is done by:
(a) Trowel
(b)Weedicides
(c) Insects
(d) Tilling
Insecte
WDS
4. Major source of water in fields is:
(a) River
(c) Ponds
(b)Tube wells
(d) Rainfall​

Answer 1

Answer:

1. d
2. c
3. d
4. d

Explanation:

A.winnowing, threshing,storage of food grains are the post harvesting techniques.

B. N means nitrogen , P means phosphorus , and K means potassium.These are micronutrients which are very essential for plants to grow.

C.Tilling is a process in which the land is tilled or ploughed.

D. Major source of agricultural irrigation is the rainfall many farmers will depend on that.

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Answer 2

Answer:

1) all of these 2) c part ok