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Causes of Global Warming: Human Activities and Natural Factors

Description: Causes of Global Warming: Human Activities and Natural Factors
Number of Questions: 15
Created by:
Tags: global warming climate change human activities natural factors
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Which human activity is a major contributor to the increase in greenhouse gases in the atmosphere?

  1. Deforestation

  2. Burning Fossil Fuels

  3. Industrialization

  4. All of the above


Correct Option: D
Explanation:

Deforestation, burning fossil fuels, and industrialization are all major contributors to the increase in greenhouse gases in the atmosphere, which leads to global warming.

What is the primary greenhouse gas emitted by human activities?

  1. Carbon Dioxide (CO2)

  2. Methane (CH4)

  3. Nitrous Oxide (N2O)

  4. All of the above


Correct Option: A
Explanation:

Carbon Dioxide (CO2) is the primary greenhouse gas emitted by human activities, accounting for approximately 65% of the total greenhouse gas emissions.

How does deforestation contribute to global warming?

  1. Releases Carbon Dioxide into the Atmosphere

  2. Reduces the Earth's Ability to Absorb Carbon Dioxide

  3. Both of the above

  4. None of the above


Correct Option: C
Explanation:

Deforestation contributes to global warming by releasing carbon dioxide into the atmosphere when trees are burned or decompose, and by reducing the Earth's ability to absorb carbon dioxide through photosynthesis.

Which natural factor is a significant contributor to global warming?

  1. Solar Irradiance

  2. Volcanic Eruptions

  3. Ocean Currents

  4. All of the above


Correct Option: A
Explanation:

Solar Irradiance, or the amount of energy emitted by the sun, is a significant natural factor that influences global warming. Variations in solar irradiance can cause changes in the Earth's climate.

How do volcanic eruptions contribute to global warming?

  1. Release Greenhouse Gases into the Atmosphere

  2. Emit Aerosols that Reflect Sunlight

  3. Both of the above

  4. None of the above


Correct Option: C
Explanation:

Volcanic eruptions contribute to global warming by releasing greenhouse gases, such as carbon dioxide and sulfur dioxide, into the atmosphere, and by emitting aerosols that reflect sunlight, which can temporarily cool the Earth's surface.

Which human activity is responsible for the release of methane, a potent greenhouse gas?

  1. Agriculture (Livestock Farming)

  2. Landfills

  3. Natural Gas Production

  4. All of the above


Correct Option: D
Explanation:

Agriculture (particularly livestock farming), landfills, and natural gas production are all human activities that contribute to the release of methane, a potent greenhouse gas with a global warming potential 25 times higher than carbon dioxide.

How does the burning of fossil fuels contribute to global warming?

  1. Releases Carbon Dioxide into the Atmosphere

  2. Releases Other Greenhouse Gases

  3. Produces Aerosols that Trap Heat

  4. All of the above


Correct Option: D
Explanation:

The burning of fossil fuels, such as coal, oil, and natural gas, releases carbon dioxide, other greenhouse gases, and aerosols into the atmosphere, contributing to global warming by trapping heat and increasing the Earth's temperature.

Which natural factor is known to have a cooling effect on the Earth's climate?

  1. Ocean Currents

  2. Volcanic Eruptions

  3. Solar Irradiance

  4. None of the above


Correct Option: A
Explanation:

Ocean currents, particularly those that transport cold water from the polar regions to warmer areas, have a cooling effect on the Earth's climate by redistributing heat.

What is the term used to describe the increase in the Earth's average temperature due to human activities?

  1. Global Warming

  2. Climate Change

  3. Greenhouse Effect

  4. None of the above


Correct Option: A
Explanation:

Global Warming refers specifically to the increase in the Earth's average temperature due to human activities, primarily the emission of greenhouse gases.

Which human activity is responsible for the release of nitrous oxide, a greenhouse gas with a high global warming potential?

  1. Agriculture (Fertilizer Use)

  2. Industrial Processes

  3. Transportation

  4. All of the above


Correct Option: D
Explanation:

Agriculture (particularly the use of nitrogen-based fertilizers), industrial processes, and transportation all contribute to the release of nitrous oxide, a greenhouse gas with a global warming potential 298 times higher than carbon dioxide.

How does the increase in greenhouse gases in the atmosphere contribute to global warming?

  1. Traps Heat and Raises Earth's Temperature

  2. Reflects Sunlight and Cools the Earth

  3. Absorbs Ultraviolet Radiation

  4. None of the above


Correct Option: A
Explanation:

The increase in greenhouse gases in the atmosphere traps heat and raises the Earth's temperature, leading to global warming.

Which natural factor is known to have a warming effect on the Earth's climate?

  1. Solar Irradiance

  2. Volcanic Eruptions

  3. Ocean Currents

  4. None of the above


Correct Option: A
Explanation:

Solar Irradiance, or the amount of energy emitted by the sun, is a natural factor that influences global warming. Variations in solar irradiance can cause changes in the Earth's climate, including periods of warming and cooling.

What is the term used to describe the long-term changes in the Earth's climate, including global warming?

  1. Global Warming

  2. Climate Change

  3. Greenhouse Effect

  4. None of the above


Correct Option: B
Explanation:

Climate Change refers to the long-term changes in the Earth's climate, including global warming, shifts in precipitation patterns, and changes in sea levels.

Which human activity is responsible for the release of aerosols, tiny particles that can have both warming and cooling effects on the Earth's climate?

  1. Burning Fossil Fuels

  2. Industrial Processes

  3. Agriculture

  4. All of the above


Correct Option: D
Explanation:

Burning fossil fuels, industrial processes, and agriculture all contribute to the release of aerosols, tiny particles that can have both warming and cooling effects on the Earth's climate, depending on their composition and altitude.

How does the increase in greenhouse gases in the atmosphere affect the Earth's energy balance?

  1. Traps More Heat and Causes Warming

  2. Reflects More Sunlight and Causes Cooling

  3. Absorbs More Ultraviolet Radiation

  4. None of the above


Correct Option: A
Explanation:

The increase in greenhouse gases in the atmosphere traps more heat and causes warming, disrupting the Earth's energy balance.

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