What Are The Two Main Factors Which Determines The Movement Of Air?

What is the pattern of movement of air?

Air in the atmosphere moves around the world in a pattern called global atmospheric circulation.

When the air cools, it drops back to the ground, flows back towards the Equator, and warm again.

The, now, warmed air rises again, and the pattern repeats.

This pattern, known as convection, happens on a global scale..

What is the role of atmosphere Class 9?

The atmosphere is a protective layer that safeguards the earth from the harsh conditions of the solar system. … During the day, it prevents a sudden increase in the temperature of the earth and prevents the heat to escape to the outer space during the night. It keeps the average temperature of the earth steady.

What is it called when air moves fast and strong?

When the air moves fast, It is called wind. Sometimes, the wind moves very fast along with heavy rains.

What happens when air heats up?

As air warms up, the molecules start to vibrate and bump into each other, increasing the space around each molecule. Because each molecule uses more space for motion, the air expands and becomes less dense (lighter). … The amount of space the air takes up shrinks, or reduces the air pressure.

What happens to the movement of molecules when their temperature is lowered?

The motion of the particles is increased by raising the temperature. Conversely, the motion of the particles is reduced by lowering the temperature, until, at the absolute zero (0 K), the motion of the particles ceases altogether. Because the particles are in motion, they will have kinetic energy.

How does air move through a fan?

The fan works by pulling air in and then making it move faster. The air flow behind the fan is slow moving and wide (you can see the arrows behind the fan coming from above and below the fan blades) whereas the air flow in front of the fan is fast moving and narrow (which follows from the conservation of mass flow.

What are the two types of air movement?

a) Movement of air due to differences in temperature between two locations is known as convection or advection. Convection is the term commonly applied to vertical movement of air, whilst advection is used in the context of horizontal displacement of air.

What is the most important reason for air movement?

Explanation: The movement of air through Earth’s — or any planet’s — atmosphere is called wind, and the main cause of Earth’s winds is uneven heating by the sun. This uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

Is the movement of air from wind?

Wind is the movement of air, caused by the uneven heating of the Earth by the sun and the Earth’s own rotation. Winds range from light breezes to natural hazards such as hurricanes and tornadoes. … Wind is the movement of air caused by the uneven heating of the Earth by the sun.

What are the 4 types of wind?

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. They are called Trade Winds, Doldrums, and Horse Latitudes.

How is airflow generated?

Airflow is generated through the nose owing to a pressure drop between the nasal inlet and the nasopharynx. This driving pressure for airflow is generated by a reduction in nasopharyngeal pressure secondary to active contraction of the diaphragm and other inspiratory pump muscles.

How do you control air flow?

5 Ways to Improve Airflow in Your HomeCheck Vents and Registers. One of the simplest things you can do to increase airflow in your home is to check the vents and registers in each room. … Turn on Ceiling Fans. Another simple solution for improving airflow is to turn on your ceiling fans. … Schedule HVAC Maintenance. … Consider Duct Cleaning. … Invest in a Ventilator.Jul 24, 2017

How does the movement of air work?

Warm air rises, creating a low pressure zone; cool air sinks, creating a high pressure zone. Air that moves horizontally between high and low pressure zones makes wind. The greater the pressure difference between the pressure zones the faster the wind moves. Convection in the atmosphere creates the planet’s weather.

What are natural resources class 9?

Introduction to Natural Resources The resources of the earth are land, water and air. Other resources include fossil fuels, sunlight, wind, minerals, etc. … Air, water and soil form the non-living or abiotic components of the biosphere.

What is the main cause of temperature changes in the atmosphere?

The main driver of climate change is the greenhouse effect. Some gases in the Earth’s atmosphere act a bit like the glass in a greenhouse, trapping the sun’s heat and stopping it from leaking back into space and causing global warming.

What are the factors responsible for the movement of air?

The movement of air through Earth’s — or any planet’s — atmosphere is called wind, and the main cause of Earth’s winds is uneven heating by the sun. This uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

What is movement of air Class 9?

The Movement of Air: Winds Moving air is called wind. Winds are caused due to uneven heating of atmosphere.

What is the movement of air called?

The movement of air is called wind.

How does temperature affect the movement of air?

How does the temperature of air affect air density? Heating of the earth, which in turn heats the atmosphere, is responsible for the motions and movements of the air in the atmosphere. The faster molecules move, the hotter the air. As the molecules heat and move faster, they are moving apart.

What are the factors affecting the movement of air Class 9?

Answer. Three of the major factors that affect wind are pressure gradients, the rotation of the planet, and friction.

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