What is a cyclone Class 7 answer?
Briefly explain what are cyclones and how are they formed. Answer: High speed winds and air pressure difference can cause cyclones. They are formed when water vapour changes back to liquid by the release of heat. This heat warms air around and it rises to move up and more air rushes to the vacant place.
What is wind short answer for Class 7?
Wind refers to the air movement from high pressure to low-pressure areas. Complete answer: In simple terms, the wind is nothing but moving air. The air movement is always from high pressure to low-pressure areas.
What are cyclones winds storms?
The air tends to rise and causes a drop in pressure. More air rushes to the centre of the storm. This cycle is repeated. The chain of events ends with the formation of a very low-pressure system with very high-speed winds revolving around it. It is this weather condition that we call a cyclone.
What are storms for Class 7?
A storm is a disturbed state of environment creating severe weather conditions mainly high speed winds. A thunderstorm is a storm with sound and lightning and typically also heavy rain or hail. Thunderstorms develop in hot and humid areas.
How is wind caused Class 7?
The Wind is caused by air moving from areas of high pressure to areas of low pressure. It is produced by the uneven heating of the earth’s surface by the Sun. Cool air moves in and replaces the rising warm air. This movement of air is what makes the wind blow.
What is wind flow pattern for Class 7?
Answer: wind is the flow of gases on a large scale on the surface of earth. Wind flow pattern means that in which direction the wind is blowing.
What are different types of winds Class 7?
There are mainly three types of winds: Permanent Winds They blow constantly throughout the year in a particular direction. They are trade winds known as westerlies and easterlies. Seasonal Winds These kind of winds change their direction in different seasons.
What is storm explain?
A storm is a violent meteorological phenomena in which there is heavy rain, and wind due to moisture in the air. Hail and Lightning are also common in storms. A storm is associated with severe weather and may be marked by strong wind, thunder, lightning and heavy precipitation such as ice.
What are trade winds Class 7?
Trade winds are a persistent wind that can be defined as the wind that flows towards the equator from the north-east in the northern hemisphere or from the south-east in the southern hemisphere. These are also known as tropical easterlies and are known for their consistency in force and direction.
What are the MCQ questions for Chapter 8 winds, storms and cyclones?
Check the below NCERT MCQ Questions for Class 7 Science Chapter 8 Winds, Storms and Cyclones with Answers Pdf free download. MCQ Questions for Class 7 Science with Answers were prepared based on the latest exam pattern.
How to monitor cyclones in Class 7 science?
It has become easier to monitor cyclones with the help of advanced technology like satellites and radars. We hope the given NCERT MCQ Questions for Class 7 Science Chapter 8 Winds, Storms and Cyclones with Answers Pdf free download will help you.
Which is unlikely to be affected by a cyclone?
Which one of the following place is unlikely to be affected by a cyclone. The answer is (iii) Amritsar because Amritsar is far away from the sea while the remaining three are coastal areas and are likely to be hit by cyclone. 9. Which of the statements given below is correct? (i) In winter the winds flow from the land to the ocean.
How are cyclones formed in winter and in summer?
(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-pressure system with very high-speed winds revolving around it. (iv) The coastline of India is not vulnerable to cyclones.