Atmosfera

The video tutorial explains the atmosphere, its composition, and its importance for life on Earth. It covers the greenhouse effect, the role of the ozone layer, and how the atmosphere influences weather and climate. The composition of the atmosphere, including nitrogen and oxygen, is discussed, along with the different layers such as the troposphere, stratosphere, mesosphere, and thermosphere.

What is the primary reason the atmosphere remains around the Earth?

• Solar winds

• Gravity

• Magnetic fields

• Earth's rotation

What is the greenhouse effect?

• The reflection of sunlight by the Earth's surface

• The cooling of Earth due to loss of heat to space

• The process of plants growing in a controlled environment

• The warming of Earth due to trapped heat by the atmosphere

How does the ozone layer benefit the Earth?

• By distributing water across the planet

• By trapping heat for the greenhouse effect

• By protecting from harmful solar radiation

• By providing oxygen for breathing

What percentage of the atmosphere is composed of nitrogen?

• 21%

• 50%

• 33%

• 78%

Which layer of the atmosphere do airplanes typically fly through?

• Troposphere

• Stratosphere

• Mesosphere

• Thermosphere