Page 133 - Ripples SCIENCE 7 - TEJPUR Edition 2024 Answer Key

winter. In summer, they bring moist air and heavy rain from the ocean to the land. In

winter, they bring dry air from the land to the ocean.

5. Is a thunderstorm same as a cyclone?
Ans. A thunderstorm and a cyclone are different types of storms. A thunderstorm is a

localized, short-term event with thunder, lightning and heavy rain, typically affecting
smaller areas.

In contrast, a cyclone is a much larger and more powerful storm system with strong
winds and heavy rain that can last for days and impact a vast region. Cyclones are

also known as hurricanes or typhoons, depending on where they occur.

6. Write the factors on which the formation of a cyclone depends.
Ans. The formation of a cyclone depends on the factors given below:

• Temperature of the place
• Wind speed

• Direction of the winds
• Humidity of the place

7. What are the precautions to be taken during a thunderstorm?

Ans. Precautions to be taken during thunderstorm
Some precautions to take when you are in an open area during a thunderstorm are

as follows :
• Do not take shelter under a tree or a building.

• Do not take shelter under an umbrella with a metallic end.
• Stay away from water. If you are in water, get out and go inside a building.

• Never sit near a window, open garages or metal sheds to take shelter.
• You can take shelter in a car or a bus.

Precautions to be taken when you are inside
The precautions when we are inside our home during a thunderstorm are as follows :

• Close the doors and windows properly.

• Do not touch/operate any electrical devices or telephone.
• Do not switch on the television.

8. In what ways do the monsoon winds helps us?
Ans. Monsoon winds help us in several important ways :

• Agriculture: They bring essential rainfall that supports crops and agriculture,
crucial for food production.

• Water Supply: They replenish rivers, lakes, and groundwater, ensuring a steady

water supply for drinking and daily use.

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