Winds, storms and cyclones
NCERT solutions for Science Winds, storms and cyclones
NCERT Class 7 Social Science Chapter wise Solutions
- Nutrition in Plants
- Nutrition in Animals
- Fibre To Fabric
- Heat
- Acids Bases And Salts
- Physical And Chemical Changes
- Climate
- Winds Storms And Cyclones
- Soil
- Respiration In Organisms
- Transportation in Animals And Plants
- Reproduction In Plants
- Motion And Time
- Electric Current And Its Effects
- Light
- Water
- Forests: Our Lifeline
- Waste Water Story
NCERT solutions for Class 7 Science Winds, storms and cyclones
Class–VII (CHAPTER-08)
WINDS, STORMS AND CYCLONES
Question 1.Fill the missing word in the blank spaces in the following statements:
(a) Wind is ———– air.
(b) Winds are generated due to ————— heating.
(c) Near the earth’s surface ————- air rises up whereas ———- air comes down.
(d) Air moves from a region of ———- pressure to a region of ———– pressure.
Answer:
Fill the missing word in the blank spaces in the following statements:
(a) Wind is moving air.
(b) Winds are generated due to uneven heating.
(c) Near the earth’s surface hot air rises up whereas cool air comes down.
(d) Air moves from a region of high pressure to a region of low pressure.
Question 2.Suggest two methods to find out wind direction at given place.
Answer:
(i) By watching the direction of movement of dry leaves released in air.
(ii) By wind van.
NCERT solutions for Class 7 Science Winds, storms and cyclones
Question 3. State two experiences that made you think that air exerts pressure( other^ thangiven in the text).
Answer:
(i) Blowing air in a balloon make it expand.
(ii) Blowing air can move curtains on doors and windows.
Question 4.You want to buy a house. Would you like to buy a house having windows butnot ventilators? Explain answer.
Answer:
No, ventilation provides a path for warm air go out of the room. This also helps the room to
survive high speed winds.
Question 5.Explain why holes are made in hanging banners and hoardings.
Answer:
Blowing air passes through the hole and thus the banner withstand less pressure.
NCERT solutions for Class 7 Science Winds, storms and cyclones
Question 6.How will you help your neighbors in case cyclone approaches yourvillage/town?
Answer:
I will help by following ways:
(i) By warning everyone about the coming danger.
(ii) Searching for shelter.
(iii) Keeping storage of water and food.
(iv) Setting up first facility.
Question 7.What planning is required in advance to deal with the situation created by acyclone?
Answer:
(i) Setting up cyclone warning system.
(ii) Setting up cyclone shelter.
(iii) Setting up food and water storage.
(iv) Setting up first aid facility.
NCERT solutions for Class 7 Science Winds, storms and cyclones
Question 8.Which one of the following places is unlikely to be affected by a cyclone?
Answer:
(iii) Amritsar.
Question 9.Which of the statements given below is correct?
(i) In winter the winds flow from the land to the ocean.
(ii) In summer the winds flow from the land towards the ocean.
(iii) A cyclone is formed by a very high-speed winds revolving around it.
(iv) The coastline of India is not vulnerable to cyclones.
Answer:
(i) In winter the winds flow from the land to the ocean.