Podcast
Questions and Answers
Which of the following best describes the primary role of the ozone layer?
Which of the following best describes the primary role of the ozone layer?
- Trapping the majority of the Sun's heat to warm the Earth.
- Filtering out the majority of the Sun's harmful ultraviolet radiation. (correct)
- Absorbing the majority of the Sun's infrared radiation.
- Reflecting the majority of the Sun's visible light away from Earth.
What is the primary cause of ozone depletion?
What is the primary cause of ozone depletion?
- The release of certain chlorine compounds into the atmosphere. (correct)
- Volcanic eruptions releasing sulfur dioxide.
- Natural fluctuations in the Earth's magnetic field.
- Increased levels of carbon dioxide in the atmosphere.
Which of the following is the most effective way to reduce ozone depletion?
Which of the following is the most effective way to reduce ozone depletion?
- Using ozone-friendly products and stopping the use of CFCs. (correct)
- Increasing the use of renewable energy sources.
- Promoting international agreements on climate change.
- Planting more trees to absorb carbon dioxide.
The 'hole' in the ozone layer over Antarctica primarily leads to which environmental effect?
The 'hole' in the ozone layer over Antarctica primarily leads to which environmental effect?
What is a direct consequence of increased UV radiation reaching the Earth's surface due to ozone depletion?
What is a direct consequence of increased UV radiation reaching the Earth's surface due to ozone depletion?
Which of the following is the most significant contributor to global warming?
Which of the following is the most significant contributor to global warming?
Which of the following is NOT a listed effect of global warming?
Which of the following is NOT a listed effect of global warming?
Why does cutting down trees exacerbate global warming?
Why does cutting down trees exacerbate global warming?
How do the levels of methane contribute to global warming?
How do the levels of methane contribute to global warming?
Why is water vapor considered a greenhouse gas?
Why is water vapor considered a greenhouse gas?
Which of the following gases composes the largest percentage of air by volume?
Which of the following gases composes the largest percentage of air by volume?
What is the primary role of oxygen in the air for living organisms?
What is the primary role of oxygen in the air for living organisms?
What is an important role of water vapor in the atmosphere?
What is an important role of water vapor in the atmosphere?
Which atmospheric component contributes to the red and orange colors of sunrise and sunset?
Which atmospheric component contributes to the red and orange colors of sunrise and sunset?
Why is carbon dioxide important for plants?
Why is carbon dioxide important for plants?
Which of the following statements accurately describes the relationship between altitude and temperature in the troposphere?
Which of the following statements accurately describes the relationship between altitude and temperature in the troposphere?
What is the significance of the tropopause?
What is the significance of the tropopause?
What is the approximate depth of water needed to exert the same pressure as the entire atmosphere?
What is the approximate depth of water needed to exert the same pressure as the entire atmosphere?
What happens to air density as you increase in height in the troposphere?
What happens to air density as you increase in height in the troposphere?
In which layer of the atmosphere do most clouds and weather phenomena occur?
In which layer of the atmosphere do most clouds and weather phenomena occur?
At what approximate altitude does the thermosphere extend?
At what approximate altitude does the thermosphere extend?
What causes the temperature to rise dramatically in the thermosphere?
What causes the temperature to rise dramatically in the thermosphere?
Why is the ionosphere important for long-distance communication?
Why is the ionosphere important for long-distance communication?
What is the primary role of the atmosphere in relation to the Earth's temperature?
What is the primary role of the atmosphere in relation to the Earth's temperature?
Which of the following statements best describes the exosphere?
Which of the following statements best describes the exosphere?
Why do meteors and obsolete satellites burn up nearly all the debris coming towards the Earth?
Why do meteors and obsolete satellites burn up nearly all the debris coming towards the Earth?
Which scientist is credited with discovering air pressure and inventing the barometer?
Which scientist is credited with discovering air pressure and inventing the barometer?
What was the significant contribution of Galileo Galilei to the study of the atmosphere?
What was the significant contribution of Galileo Galilei to the study of the atmosphere?
What did the French mathematician Blaise Pascal demonstrate about air pressure?
What did the French mathematician Blaise Pascal demonstrate about air pressure?
Who designed the first hygrometer to measure humidity?
Who designed the first hygrometer to measure humidity?
What is the scientific study of weather called?
What is the scientific study of weather called?
Which layer of the atmosphere is crucial to life on Earth because it contains ozone gas?
Which layer of the atmosphere is crucial to life on Earth because it contains ozone gas?
In which layer of the atmosphere do meteors burn up?
In which layer of the atmosphere do meteors burn up?
Why are airplanes often flying in the stratosphere?
Why are airplanes often flying in the stratosphere?
What is the name of the end of the stratosphere?
What is the name of the end of the stratosphere?
What distinguishes climatology from meteorology?
What distinguishes climatology from meteorology?
Flashcards
The atmosphere
The atmosphere
An invisible sea of gases which provides the raw materials for weather and sustains all forms of life on our planet
Meteorology
Meteorology
A scientific study of weather.
Meteorologist
Meteorologist
Scientist who studies weather
Atmosphere
Atmosphere
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Atmospheric pressure
Atmospheric pressure
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Temperature and height
Temperature and height
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Troposphere
Troposphere
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Tropopause
Tropopause
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Stratosphere
Stratosphere
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Mesosphere
Mesosphere
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Thermosphere
Thermosphere
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Exosphere
Exosphere
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Ionised Air
Ionised Air
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Greenhouse effect
Greenhouse effect
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Atmosphere
Atmosphere
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Ozone Layer
Ozone Layer
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Cause of Ozone Depletion
Cause of Ozone Depletion
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Ways to Reduce Ozone Depletion
Ways to Reduce Ozone Depletion
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Effect of Ozone Depletion
Effect of Ozone Depletion
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Global Warming
Global Warming
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The Greenhouse Gases
The Greenhouse Gases
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Effect of Global Warming
Effect of Global Warming
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Air composition
Air composition
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Oxygen Uses
Oxygen Uses
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Water Vapor Importance
Water Vapor Importance
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Role of Dust
Role of Dust
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Study Notes
Stratosphere
- The stratosphere is the second layer of the atmosphere
- It extends from the tropopause to about 50 km above the surface of the Earth
- Temperatures increase in this layer because ozone absorbs ultraviolet radiation from the sun
- The temperature slowly increases up to 4°C
- This layer is free from clouds and associated weather phenomena
- The stratosphere provides ideal flying conditions for large jet planes
- At approximately 50 km, the temperature decrease begins, marking the end of the stratosphere which is called the stratopause
Mesosphere
- The mesosphere lies above the stratosphere and extends to a height of 80 km
- Temperature decreases again in the mesosphere
- The mesosphere has the coldest temperature in the atmosphere which can fall as low as -90°C
- The end of the mesosphere layer is known as the mesopause
Notes
- The stratosphere contains small amounts of ozone gas that absorbs some of the ultraviolet radiation, which would otherwise severely harm all living things on Earth
- Jet planes flying high in the sky leave a white trail behind them because the plane is flying in the stratosphere. This white trail is the moisture from its engines forming condensation trails, which are not disturbed by any air movement
Climatology
- The scientific study of climate is called climatology
- A climatologist is a scientist who studies climate
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