Earth's Atmosphere Quiz

What are the main gases that make up Earth's atmosphere?

• Hydrogen and Helium

• Carbon Dioxide and Methane

• Nitrogen and Oxygen

• Argon and Neon

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

• 50%

• 90%

• 30%

• 78%

How does the composition of Earth's atmosphere vary with altitude?

• The composition of Earth's atmosphere varies with altitude.

• The composition of Earth's atmosphere varies with time of day.

• The composition of Earth's atmosphere is the same at all altitudes.

• The composition of Earth's atmosphere varies with latitude.

Explain the concept of the troposphere and its significance in Earth's atmosphere.

• The troposphere is the layer of the atmosphere where the auroras occur and contains the ionosphere.

• The troposphere is the lowest layer of Earth's atmosphere, where weather occurs and contains the air we breathe.

• The troposphere is the layer of the atmosphere closest to the sun and contains the ozone layer.

• The troposphere is the layer of the atmosphere where most commercial airplanes fly and contains the highest concentration of carbon dioxide.

What are the five main layers of Earth's atmosphere?

• Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere

• Ozoneosphere, Nitrogenosphere, Oxygenosphere, Carbonosphere, Hydrogensphere

• Skyosphere, Sunosphere, Moonosphere, Starosphere, Galaxyosphere

• Cloudosphere, Rainosphere, Snowosphere, Hailosphere, Thunderosphere

Describe the characteristics of the stratosphere.

• The stratosphere is characterized by frequent thunderstorms

• The stratosphere is characterized by the presence of the ozone layer.

• The stratosphere is characterized by extreme cold temperatures

• The stratosphere is characterized by high levels of carbon dioxide

What is the importance of the mesosphere in Earth's atmosphere?

• It is the layer where most airplanes fly

• It is the layer where most clouds form

• It is the layer where most meteoroids burn up upon entering the atmosphere.

• It is the layer where most birds migrate

Explain the role of the ozone layer in protecting Earth from harmful UV radiation.

• The ozone layer absorbs harmful UV radiation from the sun.

• The ozone layer amplifies the harmful effects of UV radiation.

• The ozone layer has no role in protecting Earth from harmful UV radiation.

• The ozone layer reflects harmful UV radiation back into space.

What are the main causes of ozone layer depletion?

• Increase in the number of volcanic eruptions

• Release of chlorofluorocarbons (CFCs), halons, and other ozone-depleting substances

• Deforestation and land clearing

• Excessive use of renewable energy sources

How does the ozone layer depletion impact the environment and human health?

• Ozone layer depletion can lead to increased exposure to harmful ultraviolet (UV) radiation from the sun, which can cause skin cancer, cataracts, and weakened immune systems in humans. It can also impact the environment by affecting plant growth, marine ecosystems, and the overall balance of the Earth's atmosphere.

• Ozone layer depletion leads to decreased exposure to harmful ultraviolet (UV) radiation

• Ozone layer depletion has no impact on the environment or human health

• Ozone layer depletion has a positive impact on plant growth and marine ecosystems