Natural Disasters
I. Fill in
the blanks
1. Waves just like the
ones we see in water are produced in
the bowels of the earth.
2. If it does not stop raining
the rain water enters the settlements.
3. People and animals are helpless against the force of the
tsunami.
4. People get trapped under the heaps and die.
II. Answer
the following:
Q1. What is meant by natural
disaster?
Ans: Natural disaster is a very serious mishap that takes place
naturally. For example – floods, earthquake.
Q2. What steps should we take to keep ourselves safe during an
earthquake?
Ans.
We should take the following steps to keep ourselves safe during an earthquake:
a) We should not panic when an earthquake occurs.
b) We should go under a strong bed or table, or stand under a door frame. This can prevent injuries from falling objects.
Q3. What should we do to protect ourselves from floods?
Ans. We can protect ourselves from floods by going to a safe place on a height and come back only when the flood waters recede.
III
Distinguish:
1. Natural disasters and Man-made disasters
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Natural
disasters
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Man-made
disasters
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1. Disasters which take place naturally are called natural disasters
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1. Disasters which take place due to human error are called man-made
disasters
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2. For example – tsunami, floods
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2. For example – collision of two railway trains, air crash
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2. Tsunami and Floods
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Tsunami
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Floods
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1. The gigantic sea waves produced by the origin of the earthquake in
the sea is called tsunami.
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1. The accumulation of water due to heavy rainfall causes floods.
Water doesn’t get drained soon.
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1. The gigantic sea waves produced by the origin of the earthquake in
the sea is called tsunami.
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1. The accumulation of water due to heavy rainfall causes floods.
Water doesn’t get drained soon.
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2. A tsunami can drown people and animals and shatter houses and shops
on the coast.
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2. House collapse and people and animals drown due to flooding as the
rain water doesn’t drain away.
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IV Answer in 2-3 sentences
Q 1. What are the ill-effects of hailstorm?
Ans. Severe hail causes injuries to people and animals. It shatters roof tiles and
can damage crops in the fields and fruits in orchards. If mango trees are in
blossom at that time, the blossoms may rot and fall down. This leads to a fall
in mango production.
Q2. What is the difference between a hail storm and a snow fall ?
Ans. Snowfall may not cause serious damage to crops however, hailstorms damages crops and fruits in the orchards. Snowfall may not injure people and
animals however, hailstorms injure people and animals.
