Question

Exercises
come
work
Multiple choice questions
1. Whic gas is used by plants during respiration?
al carbon dioxide b) oxygen
d) all of these
c) nitrogen
give answer​

Answer 1

Answer:

12. Seed drill, because it is a modern agricultural implement unlike

the others which are all traditional tools.

13. The field will be watered, tilled and ploughed before sowing seeds.

14. (i) False: Apart from good quality seeds, using appropriate

agricultural practices are important for getting higher

yield.

(ii) False: It actually enriches the soil.

(iii) False: Some crop plants need transplantation.

(iv) False: Rhizobium (bacteria) present in the cells of root

nodules of leguminous, plants fix nitrogen.

Explanation:

Answer 2

The answer is b) oxygen