Question: What Causes Wind Class 9?

What causes wind quizlet?

winds are caused by differences in air pressure.

Regions of cold,heavy air have ______air pressure.

Regions of warm, light air have_______ air pressure.

Wind is the________movement of air along Earth’s surface..

What damage did the wind cause how can this be avoided Class 9?

The small flames of fires are also extinguished by the wind. The god of wind suppresses and destroys weak people and structures. Proud of his power, he causes large-scale destruction. This can be avoided by making friend with wind as the poet suggest and making our ready and strong to face the wind .

How can we be friends with the wind?

To make friends with wind we need to build strong homes with firm doors. We should also make ourselves physically and mentally strong by building strong, firm bodies and having steadfast hearts. What does the poet say the wind god winnows?

What does the wind do Class 9 answer?

According to the poet, the wind is very powerful. It has power to break the shutters of the windows, scatter the papers and throw the books down the shelf. When it blows violently, it brings the clouds. It mocks at the weak and destroys their homes.

How are clouds formed Class 9 Brainly?

Clouds are formed by the process of evaporation and condensation. … At a certain height when the air becomes cooler, water vapour contained in air condenses. On condensation, these form water droplets. These water droplets collect and float in air as clouds.

What’s the meaning of wind?

1a : a natural movement of air of any velocity especially : the earth’s air or the gas surrounding a planet in natural motion horizontally. b : an artificially produced movement of air. c : solar wind, stellar wind.

What is the name of strong wind?

howling windWhat is another word for strong wind?galecyclonemistralmonsoonoutbreakwindhigh windhowling windviolent stormbreeze86 more rows

How are clouds formed Class 9?

How are clouds formed? Ans. During day time water from different sources like pond, lake, river, sea, well etc get evaporated and this water vapour rises up with the hot air. At a particular height the air cools and the water vapour condenses to form minute droplets and form clouds.

Why is wind important to humans?

Wind energy is a source of renewable energy. It does not contaminate, it is inexhaustible and reduces the use of fossil fuels, which are the origin of greenhouse gasses that cause global warming. … For these reasons, producing electricity through wind energy and its efficient use contributes to sustainable development.

What is wind Short answer?

He told me the simple answer: Wind is moving air. We thought you might want to know more about how it works. Wind happens both because of how the Sun heats up the Earth and the tiny air molecules that move around us all the time. … As the Sun heats up the Earth’s surface, differences in air pressure cause air to move.

What is a cold wind called?

Mistral A cold, dry wind blowing from the north over the northwest coast of the Mediterranean Sea, particularly over the Gulf of Lions. Also called CIERZO. … Norte A strong cold northeasterly wind which blows in Mexico and on the shores of the Gulf of Mexico. It results from an outbreak of cold air from the north.

What causes wind Short answer?

The wind is caused by differences in atmospheric pressure. When a difference in atmospheric pressure exists, air moves from the higher to the lower pressure area, resulting in winds of various speeds. On a rotating planet, air will also be deflected by the Coriolis effect, except exactly on the equator.

What are 3 major wind systems?

There are three prevailing wind belts associated with these cells: the trade winds, the prevailing westerlies, and the polar easterlies (Fig.

What are the 4 types of wind?

The Four Major Wind Systems and Wind Belts: The four major wind systems are the Polar and Tropical Easterlies, the Prevailing Westerlies and the Intertropical Convergence Zone. These are also wind belts. There are three other types of wind belts, also.

What are the two main types of winds?

Wind blowing above the earth surface may be classified into five major types:Planetary winds.Trade winds.The westerlies.Periodic winds. Monsoon winds. Land breeze. Sea breeze. Mountain and valley breeze.Local winds.Nov 7, 2020

What is winnowing called Class 9?

1. The wind breaks the shutters of the windows; scatters the papers; throws down the books from the shelf; tears the pages of the books; and brings showers of rain. 2. Yes, I have seen women winnowing grain at home in the villages. Winnowing is generally known as phatkna, pichorna or anaj parchana in Hindi.

What are the causes of wind?

Wind is air in motion. It is produced by the uneven heating of the earth’s surface by the sun. Since the earth’s surface is made of various land and water formations, it absorbs the sun’s radiation unevenly.

What causes winds Class 9 Brainly?

An uneven heating of the Earth’s surface causes winds. On being heated, air becomes lighter and rises up. As a result, a region of low pressure is created. Then, air from a high pressure region moves to a low pressure region, causing wind.