Question

(a) polyester
Answer the following one word answer type questions:
11. What will happen if we go on cutting trees?
12. Name the quantity that describes the pitch of a sound wave.
13. Name a non metal which is good conductor of electricity.
14. Write a short note weeding​

Answer 1

1. it's not good for living beings
2. ____
3. iron
4. to remove weeds from a piece of ground, etc.

Answer 2

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Weeding or weed control is the process of removing unwanted plants from crop fields. Here physical, chemical and biological methods are used to stop weeds from reaching a mature stage of growth when they could be harmful to domesticated plants and livestock.