Greenhouse Effect

The greenhouse effect causes ​ (a)   of the planet due to trapped ​ (b)   radiation.

• warming
• infrared
• ultraviolet
• cooling
• visible

Which of the following are greenhouse gases?

• Carbon dioxide
• Methane
• Water vapor
• All answers are correct

The Earth's atmosphere acts like a greenhouse that traps heat from the sun.

• true

• false

Match the planet with its relative greenhouse effect.

• excessive greenhouse effect - too hot

• Mars

• limited greenhouse effect - too cold

• Earth

• just right...for now

• Venus

Which of the following natural events is NOT a source of carbon dioxide?

• Wildfire

• Decomposing plants and animals

• Volcanic eruption

• Earthquake

What happens to the temperature if more greenhouse gases are released into the atmosphere?

• Temperature goes up
• Temperature goes down

At what point in human history did global carbon dioxide levels start to rise?

• World War I

• World War II

• The Industrial Revolution

• The invention of the car

The greenhouse effect is a natural process

• true

• false

The greenhouse effect is caused by

• more heat arriving at the Earth from the sun

• the Earth releasing more heat at night

• gases in the air trapping heat released by the Earth

The graph shows us that

• the earth temperature is always increasing

• the earth's temperature has steadily increased since 1900

• the earth's temperature has steadily rising since the 1960s

• the earth's temperature decreased during the 19th and 20th centuries