Carbon Cycle and Greenhouse Effect

Front

Why does too much carbon dioxide in the atmosphere cause climate change?

Back

It traps heat and warms up our planet.

Front

A farmer's tractor adds to the carbon footprint of food because___________.

Back

it burns fossil fuel traveling back and forth over the fields.

Front

Which of these choices in transportation produces less greenhouse gas than the others? Options: walking, riding a bus, riding a car, taking a train

Back

walking

Front

Which of these activities reduce greenhouse gas production?

• Turning off lights when leaving a room
• Leaving the video game system on when you're done playing
• Leaving chargers and non-essential appliances plugged in when not in use
• Ride a train

Back

Turning off lights when leaving a room

Front

The main human activity that adds to an individual's carbon footprint.

Back

usage of fossil fuels for energy

Front

When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide. Options: Water, Atmosphere, Sun, Air

Back

Atmosphere

Front

Which is a true statement?

• Humans depend on oxygen, plants depend on carbon dioxide
• Plants produce carbon dioxide only
• Humans depend on carbon dioxide, plants depend on oxygen
• Humans don't depend on plants for the air they need

Back

Humans depend on oxygen, plants depend on carbon dioxide

Front

What causes the greenhouse effect?

Back

Gases in the air trapping heat released by the Earth.

Front

Gasoline, diesel, natural gas, and coal are all _________.

Back

fossil fuels

Front

A decrease in forest land results in a net ________ of CO₂ in the atmosphere.

Back

increase