Atmosphere and weather

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What is the water cycle?

Back

The water cycle is the continuous process by which water moves from the Earth's surface to the atmosphere and back, involving processes like evaporation, condensation, and precipitation.

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What happens during a cold front?

Back

A cold front forms when cold air pushes into a mass of warm air, causing the warm air to rise quickly, often leading to thunderstorms.

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What is a low pressure system?

Back

A low pressure system is an area where the atmospheric pressure is lower than that of the surrounding areas, often associated with cloudy and rainy weather.

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What is the percentage of oxygen in Earth's atmosphere?

Back

The percentage of oxygen in Earth's atmosphere is approximately 21%.

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What is the role of ozone in the atmosphere?

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Ozone is a molecule in the atmosphere that absorbs harmful ultraviolet (UV) radiation from the sun, protecting living organisms.

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What are the layers of the atmosphere?

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The layers of the atmosphere include the troposphere, stratosphere, mesosphere, thermosphere, and exosphere.

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What is a warm front?

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A warm front occurs when warm air moves into an area occupied by cooler air, leading to gradual weather changes and often light rain.

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What is the Coriolis effect?

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The Coriolis effect is the apparent deflection of moving objects (like air currents) caused by the rotation of the Earth.

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What is atmospheric pressure?

Back

Atmospheric pressure is the force exerted by the weight of air above a given point, typically measured in millibars or inches of mercury.

Front

What is a stationary front?

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A stationary front occurs when two air masses meet but neither is strong enough to replace the other, often leading to prolonged cloudy and rainy weather.