Question

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 (c) Insects
(b) Weedicides (d) Tilling
4. Major source of water in fields is:
(a) River (c) Ponds
(b)Tube wells (d) Rainfall
Q5. What is crop rotation?
Q6. Why organic manure is considered better than chemical fertilizer?
Q7. What precautions should be taken care while storing harvested grains?
Q8. List some advantages of preparing soil.
Q9. A farmer was using lot of fertilizers for the improvement of his produce from the
field. List any two harmful effects of fertilizers on environment.
How will you convince him to restrict the use of fertilizers?

Answer 1

Answer:

i dont know

Explanation:

i dont know boyyyyyyyyy