role of greenhouse gases

Greenhouse gases are defined as gases that …… heat in the atmosphere

• Trap

• Increase

• Factor

• Cycle

What does greenhouse mean?

• Gases that trap heat in the atmosphere

• A house with green color

• A house with a lot of tree

• Gases in the surface of the ocean

Adding carbon dioxide is a …….. used method to increase greenhouse crop yields

• Anomaly

• Commonly

• Dramatically

• Likely

What does CO2 stand for?

• Cacbon dioxide

• Canxi Cacbonat

• Cacbonhydrat

• Cacbon monoxit

Greenhouse gases are ….. when humans produce electricity , drive cars, power factories , and grow crops

• Composed

• Emitted

• Drived

• Measured

Carbon dioxide enters the atmosphere through burning fossil fuels (coal, natural gas, and oil), solid waste, trees and other biological materials, and also as a result of certain chemical reactions

• True

• False

A greenhouse gas is a gas that………… radiant energy within the thermal infrared range, causing the greenhouse effect

• Shift and Emission

• Retain and absorb

• Absorbs and Emits

• Retain and Emit

What does the main greenhouse gases contribute to global warming?

• CO2

• CH4

• N2O

• All

Gases that trap heat in the atmosphere are called greenhouse gases

• True

• False

In the industrial era, human activities have added greenhouse gases to the atmosphere, mainly through the............ of fossil fuels and clearing of forests

• Running

• Cleaning

• Burning