Question

4. Which of the following is used to kill unwanted plants in a field?
a. weedicide
b. planticide
c. fungicide
d. insecticide

5. Grain is separated from chaff by
a. winnowing
b. hybridisation c. apiculture
d. fallowing

6. Hybridisation is done to
a. combine the characteristics of plants
b. irrigate crops
c. make a plant similar to another
d. make a plant easier to destroy

7. The rearing of fish is known as
a. agriculture
b. pisciculture c. apiculture
d. horticulture​

Answer 1

Explanation:

1. weedicide

2.winnowing

3.make a plant similar to another

4. horticulture