Environmental Science A Q2 Review

When we discuss greenhouse gases what is the main one we discuss?

• Methane (CH₄)
• Carbon Dioxide (CO₂)
• Nitrous oxide (N₂O)
• Flourinated gases

The main human activity that releases greenhouse gases is...

• using bottled water
• burning fossil fuels
• texting on cellphones
• eating meat

T/F: Some greenhouse gases are naturally present in the Earth's atmosphere

• True
• False

The warming of the atmosphere by the trapping of heat being radiated to space is called

• evaporation
• condensation
• the greenhouse effect
• radiation

What is the greenhouse effect?

• The warming of a planet due to trapped radiation.
• The cooling of Earth due to air pollution.
• The heating of a solid, such as a rock.

Which of the following are greenhouse gases?

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

Without the Greenhouse Effect the Earth would be

• warm 
• cold
• dead

Cutting down large forests (deforestation) can result in:

• little to no changes

• more homes for animals

• less plants to absorb carbon dioxide, a greenhouse gas

1.  Certain gases in the atmosphere – water vapor, carbon dioxide, methane and nitrous oxide – help maintain the Earth’s temperatures and climate. These are called: __________ . 

• A.  ozone gases
• A.  solar gases
• A.  greenhouse gases 
• A.  stomach gases

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

• true
• false