Question

1. An electron has a _________ charge
(a) Negative (b) positive. (c) neutral
2. To boil water we must increase its temperature to __________ 'C.
(a) 50. (b)60. (c) 100
3. Sun is the example of _________.
(a) Conduction. (b) radiation. (c) convection

Answer 1

Answer:

1)Negative.....

2)100°.....

3)Radiation.....

Answer 2

Answer:

1(a)

2

(c)

3

(b)

Explanation:

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