Question

1.What is the full form PGR? a) Physical growth revivers b) Plant growth regulators c) Plant germination regulators d) Plant germination revivers 2.Why a farmer uses pesticides in field during agricultural practices? 3.) Whether use of pesticides is the application of modern science only? (Yes/No) 4.Name any two chemicals w
hich are used to increase crop yield. 5. Pesticides/weedicides has increased the crop yield but caused other damages to the environment including human life’. Justify the statement by giving two points.


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Answer 1

Explanation:

1.B plant growth regulators

2. To help control the thousands of weed species ,harmful insects,and plant deseas that can effect the quality of crop.

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Answer 2

Explanation:

3.) Whether use of pesticides is the application of modern science only? (Yes/No)