Question

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

Answer:

weedicides

weeds

green manuring crops

soil health