Introduction to the atmosphere quiz

Choose which of the following natural phenomena that cause a natural greenhouse effect.

• Volcanic activity and sunspot activity.

• Weathering of rocks and fossil fuel combustion.

• Tornadoes and sunspot activity.

• Earthquakes and tidal flow.

The Earth has got a natural mechanism based on reflection of insolation back into the atmosphere. What is the name of this phenomenon?

• The albedo effect

• Acid deposition

• The enhanced greenhouse effect

• Photochemical smog

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Which component of the atmosphere often plays an important role in ensuring the functioning of the albedo effect?

• Clouds

• Nitrogen

• Oxygen

• Ozone

Some gases in the atmosphere, such as water vapour and carbon dioxide, are known to trap the infrared light (IR) of longer wavelengths, thus warming up the planet Earth. What is this phenomenon called?

• Greenhouse effect

• Global climate change

• Global dimming

• Human enhanced greenhouse effect

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Even the localised human activities can lead to global problems affecting the composition of the atmosphere. Why is it so?

• Pollutants are carried by air currents away from the location where they were produced.

• The human population is constantly moving from one place to another, spreading pollutants dynamically and in many different locations.

• The sources of human-made pollutants are not usually traced back to one particular location as they are usually an example of non-point source pollution.

• The atmosphere is a resource used by the whole of the human population - any changes to its composition affect us all regardless of the location.

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By burning fossil fuels, humans produce additional amounts of carbon dioxide which enters the Earth’s atmosphere. CO2 from this source is therefore an example of an atmospheric:

• Input

• Output

• Transformation

• Transfer

Which part of the atmosphere is where most weather is found?

• Troposphere

• Stratosphere

• Ozonosphere

• Weather is found in all layers of the atmosphere.

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The composition of the atmosphere may change dynamically over time. What is the effect on the rates of photosynthesis if the concentration of carbon dioxide in the atmosphere increases?

• Rates increase.

• Rates decrease.

• Rates remain the same.

• It is hard to predict.

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Nitrogen leaving the atmosphere either through nitrogen-fixing or lightning is an example of an atmospheric:

• Output

• Input

• System

• None of the answer alternatives

The composition of the atmosphere (concentration of different gases) can:

• Be changed by human activities.

• Not be altered.

• Be changed by natural processes only.

• None of the answer alternatives.

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