Question

is formed in still water of a lake?
th)What is a veri-orocessing toilet? Name the useful by product obtained from such toilets
( What is meant
by: (a) sewer, and (b)sewerage
6) state differences between a convex lens and a concave lens Cive one use of convex lens and one
use of concave
lens.​

Answer 1

Answer:

6. use of convex lens is for hypermetropia

use of concave lens is for myophia.

Answer 2

Answer:

(-4)5 ÷ (-4)8 = (-4)5-8 [am ÷ an = am-n]

= (-4)-3

= 1/(-4)3 [a-m = 1/ am]

= -1/64

Explanation:

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