Planet Earth: MCQ Quiz

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Confront our quiz's array of questions, where you'll randomly encounter 20 from a pool of over 30, each offering four choices, with only one being the correct solution.

1 / 20

1) Which of the following is the primary cause of earthquakes?

Human activity

Meteor impacts

Volcanic eruptions

Plate tectonics

2 / 20

2) What is the name of the process by which carbon dioxide is removed from the atmosphere and stored in rocks or other geological formations?

Carbon fixation

Carbon cycling

Carbon capture

Carbon sequestration

3 / 20

3) What is the name of the layer of the Earth's atmosphere that is located directly above the thermosphere?

Troposphere

Ionosphere

Exosphere

Mesosphere

4 / 20

4) What is the name of the layer of the Earth's atmosphere that is responsible for protecting life on Earth from harmful radiation?

Stratosphere

Troposphere

Mesosphere

Ozone layer

5 / 20

5) Which of the following is a primary cause of global warming?

Acid rain

Ozone depletion

Deforestation

Greenhouse gases

6 / 20

6) What is the name of the layer of the Earth's atmosphere that is closest to the planet's surface?

Stratosphere

Thermosphere

Mesosphere

Troposphere

7 / 20

7) What is the name of the highest waterfall on Earth?

Niagara Falls

Angel Falls

Victoria Falls

Iguazu Falls

8 / 20

8) What is the name of the deepest part of the ocean on Earth?

Kuril-Kamchatka Trench

Puerto Rico Trench

Java Trench

Mariana Trench

9 / 20

9) What is the name of the phenomenon that causes the Earth's magnetic field to periodically reverse?

Geomagnetic reversal

Magnetic storms

Solar flares

Magnetic reconnection

10 / 20

10) What is the name of the supercontinent that existed approximately 300 million years ago?

Laurasia

Gondwana

Pangea

Rodinia

11 / 20

11) What is the name of the large circular current system in the Atlantic Ocean that affects weather patterns in Europe?

North Atlantic Drift

Labrador Current

Canary Current

Gulf Stream

12 / 20

12) Which of the following is a common greenhouse gas?

Nitrogen

Oxygen

Methane

Carbon

13 / 20

13) Which of the following is a key factor in determining an area's climate?

Latitude

Altitude

Distance from the ocean

Latitude, Altitude, Distance from the ocean

14 / 20

14) What is the process by which rocks are broken down into smaller pieces?

Deposition

Compaction

Weathering

Erosion

15 / 20

15) What is the name of the process by which water is released from plants into the atmosphere?

Infiltration

Runoff

Precipitation

Transpiration

16 / 20

16) What is the most abundant gas in the Earth's atmosphere?

Oxygen

Nitrogen

Helium

Carbon dioxide

17 / 20

17) What is the largest ocean on Earth?

Indian Ocean

Arctic Ocean

Atlantic Ocean

Pacific Ocean

18 / 20

18) What is the Earth's age, roughly speaking?

1 billion years

500 million years

4.5 billion years

2.5 billion years

19 / 20

19) What is the name of the phenomenon that causes the gradual warming of the Earth's atmosphere due to increased levels of greenhouse gases?

Global warming

Global cooling

Ice age

Climate change

20 / 20

20) What is the primary source of energy for the Earth's climate system?

Fossil fuels

Solar Energy

Geothermal energy

Nuclear energy

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