Greenhouse Effect

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 been steadily rising since the 1960s

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

Which of the gases is NOT a greenhouse gas?

• water vapour

• carbon monoxide

• carbon dioxide

• methane

The area of human activity responsible for the highest greenhouse gas emissions is

• energy supply

• transport

• agriculture

• industrial

The area of human activity responsible for the second highest greenhouse gas emissions is

• residential activity

• transport

• agriculture

• industrial

The highest gaseous pollutant is

• methane

• nitrous oxide

• carbon dioxide

• fluorinated gases

Which of the following are greenhouse gases?

• Carbon dioxide

• Methane

• Water vapor

• All answers are correct

The Earth acts like a greenhouse that catches and traps heat from the sun.

• true
• false

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

• Temperature goes up
• Temperature goes down