Question

Choose the correct answer for each of the following:
1. Which is a non-combustible substance?
(a) Wood
(b) Paper
(c) Cement
(d) Kerosene
2. Which is required for combustion?
(a) Oxygen
(b) Nitrogen
(c) Carbon dioxide
(d) Ozone
Science-8
66​

Answer 1

Answer:

1) cement

2) oxygen

Explanation:

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Answer 2

Explanation:

1. cement
2. oxygen

The answer is 1 one (c)

2 one (b)