Question

The circulation of Nitrogen in the nature maintaining its percentage in atmosphere is known as_____. *

What are weeds?Name one weedicide. 
 
Write any 3characteristics of Synthetic fibres ( OR ) Plastics . 

Differentiate between metals and nonmetals based on their physical properties .​

Answer 1

Answer:

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Answer 2

Answer:

1. Nitrogen cycle

2. Weeds are undesirable plants. Weedicides include 2,4D

3. Plastics are synthetic, non-biodegradable and polymers

4. Nonmetals are brittle while metals are malleable and ductile

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