Combustion

IMPORTANT

Combustion: Overview

This topic explains concepts such as, Combustion, Necessity of Air for Combustion, Requirement for Producing Fire, Ignition Temperature, etc.

Important Questions on Combustion

MEDIUM
IMPORTANT

What is combustion? Give examples?

EASY
IMPORTANT

Write any three scientific factors which supports an object to burn.

EASY
IMPORTANT

If we place a glass on top of a candle the candle will not burn then how does lantern work.

MEDIUM
IMPORTANT

Which of these is not true for combustion?

MEDIUM
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What do you understand by the 'flash point' of a fuel?

EASY
IMPORTANT

How do greenhouse gases keep the earth warm?

EASY
IMPORTANT

What is greenhouse effect? Explain how it keeps the earth warm.

EASY
IMPORTANT

Identify the component of air necessary for combustion.

EASY
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How greenhouse effect keeps the earth warm?

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IMPORTANT

List a few effects of global warming.

EASY
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Which of these is a result of global warming?

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Greenhouse effect is good for the earth's environment.

EASY
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One of these is not a greenhouse gas. Which is this gas?

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How does greenhouse effect affect the environment?

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We can live our life without fire, it is not necessary thing in our life.

MEDIUM
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Why fire is so important in our life?

MEDIUM
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A chemical reaction in which substance reacts with carbon dioxide to gives off heat is called combustion.

MEDIUM
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Which of the following is not required for combustion?

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What all are the things required for combustion?

MEDIUM
IMPORTANT

Explain the effect of pollution on environment caused by the burning of wood, cowdung cakes, straws of wheat and paddy in the field.