Question

Q.03. Fill in the blanks
1. Chemicals used to kill weeds are called
2. Unwanted plants In crop field are called
3. Soil erosion can be prevented by
4. The addition of undesirable substances to water bodies is
5.
is defined as physical ,mental and social well being and comfort.​

Answer 1

1 weedicides

2 weeds

3 keeping the soil wet

4 water pollution