Question

He must have watched lightning and volcanoes long before he began to use fire himself. Fire was powerful and dangerous, and he was frightened. Fire may have puzzled early man but we now know that fire is the result of a chemical reaction. When the oxygen in the air combines with carbon and hydrogen in a fuel, a chemical reaction takes place. Energy in the form of heat and light is released in this process. This is what we call fire.
1. Who must have watched lightning?
2. Why was ‘he’ afraid of fire?
3. What is the chemical reaction in the fire?
4. What is released from the​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

1. He must have watched lightning.

2. He was afraid of fire because fire was powerful and dangerous.

3. The chemical reaction in the fire is, when the oxygen in the air combines with carbon and hydrogen in a fuel,a chemical reaction takes place.

4. Energy in the form of heat and light is released this process.