Question

2.) The alloy of iron, nickel and chromium is-
A.)Bronze
B.)Brass
C.)Copper
D.)Stainless steel
3.) S.I.unit of potential-
A.)watt
B.)volt
C) ohm
D.)coulumb
4.)Flow of energy is an Ecosystem is always
A.) Unidirectional B.) bidirectional C.)Multidirectional
D)None of these
5.) Which type of lens is used to remove long sightedness-
A) concave
B)convex
C)cylindrical
D) contact
21 Filinthehhnke​

Answer 1

Answer:

2 c , 3 b, 4 d 5 a.....ok

Explanation:

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