Sources of greenhouse gases

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

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

T/F: Water vapor is a greenhouse gas

• True
• False

What results from livestock and other agricultural practices and by the decay of organic waste in municipal solid waste landfills?

• Carbon Dioxide

• Methane

• Water Vapor

• Fluorinated Gases

• Nitrous Oxide

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

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-5

Over the past 200 years, the level of carbon dioxide in the atmosphere has

• decreased slightly.   
• increased until recently, and then decreased.
• increased steadily.   
• stayed about the same.

Tags

NGSS.HS-ESS2-6

NGSS.HS-ESS3-5

Each one of these gases is a greenhouse gas, except which one?

• carbon dioxide

• water vapor

• hydrogen dioxide

• methane

Tags

NGSS.MS-ESS3-4

NGSS.MS-ESS3-5

Trees are so important to our environment because they absorb (sink) which greenhouse gas?

• methane

• carbon dioxide

• water vapor

• oxygen

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Choose all of the leading contributors of carbon dioxide that are contributing to global warming.

• forest fires

• human breathing (respiration)

• car exhaust

• factory pollution

Tags

NGSS.MS-ESS3-4

NGSS.MS-ESS3-5

In which of these areas would you be breathing in a lot of methane gas? (more than one)

• A farm with livestock

• The beach.

• A mall.

• A landfill.

True or False: The greenhouse effect is always bad for our environment.

• True

• False

Tags

NGSS.MS-ESS3-4

NGSS.MS-ESS3-5