Question

IL. Fill in the blanks.
1. The practice of cultivating land using such methods
that yield sufficient crops without causing harm to
natural resources is called
2. Rice, maize, bajra and groundnut are
crops.
3. Plants obtain carbon, oxygen and hydrogen
from __and
4. Manures help in enriching the soil with nutrients
and
5. When compost is prepared by the help of
earthworms, the process is called
6. A legume crop does not require fertilizer
7. When superior varieties of crop plants are obtained
from some other area and acclimatized to the local
environment, the process is called
8. Selecting the seeds of many plants with desirable
external characteristics is called
9. Intercropping aims at increasing the
area of land
10. Leguminous pulse crops have bacteria in
their roots.
11. Crop diseases are transferred through
per unit
or
12. Rust and smut are the common diseases of​

Answer 1

Answer:

rice is a natural resource