Background: When humans dig up and use fossil fuels, we have an impact on the carbon cycle ( Figure below ). This carbon is not recycled until it is used by humans. The burning of fossil fuels releases more carbon dioxide into the atmosphere than is used by photosynthesis. So, there is more carbon dioxide entering the atmosphere than is coming out of it. Carbon dioxide is known as a greenhouse gas , since it lets in light energy but does not let heat escape, much like the panes of a greenhouse. The increase of greenhouse gasses in the atmosphere is contributing to a global rise in Earth’s temperature, known as global warming or global climate change.

Situation: India decided to use fossil fuels to produce their electricity, and Nepal decided to go renewable and use only hydro power to produce their electricity.

Question: Which country had more of an impact on the carbon cycle?
Answer: India

Situation: India decided to use fossil fuels to produce their electricity, and Nepal decided to go renewable and use only hydro power to produce their electricity.

Question: Which country had less of an impact on the carbon cycle?
Answer: Nepal

Situation: India decided to use fossil fuels to produce their electricity, and Nepal decided to go renewable and use only hydro power to produce their electricity.

Question: Which country released more carbon dioxide into the atmosphere?
Answer: India

Situation: India decided to use fossil fuels to produce their electricity, and Nepal decided to go renewable and use only hydro power to produce their electricity.

Question: Which country released less carbon dioxide into the atmosphere?
Answer: Nepal

Situation: India decided to use fossil fuels to produce their electricity, and Nepal decided to go renewable and use only hydro power to produce their electricity.

Question: Which country released less greenhouse gas into the atmosphere?
Answer: Nepal

Situation: India decided to use fossil fuels to produce their electricity, and Nepal decided to go renewable and use only hydro power to produce their electricity.

Question: Which country released more greenhouse gas into the atmosphere?
Answer: India

Situation: India decided to use fossil fuels to produce their electricity, and Nepal decided to go renewable and use only hydro power to produce their electricity.

Question: Which country contributed more to climate change?
Answer: India

Situation: India decided to use fossil fuels to produce their electricity, and Nepal decided to go renewable and use only hydro power to produce their electricity.

Question: Which country contributed less to climate change?
Answer: Nepal

Situation: India decided to use fossil fuels to produce their electricity, and Nepal decided to go renewable and use only hydro power to produce their electricity.

Question: Which country contributed more to a global rise in Earth's temperature?
Answer: India

Situation: India decided to use fossil fuels to produce their electricity, and Nepal decided to go renewable and use only hydro power to produce their electricity.

Question: Which country contributed less to a global rise in Earth's temperature?
Answer: Nepal

Situation: Two neighboring countries France and Spain were competing for economical supremacy in Europe. Spain dug up fossil fuels and used it as an energy source. France used alternative sources of energy.

Question: Which country had a greater impact on the carbon cycle?
Answer: Spain

Situation: Two neighboring countries France and Spain were competing for economical supremacy in Europe. Spain dug up fossil fuels and used it as an energy source. France used alternative sources of energy.

Question: Which country had a smaller impact on the carbon cycle?
Answer: France

Situation: Two neighboring countries France and Spain were competing for economical supremacy in Europe. Spain dug up fossil fuels and used it as an energy source. France used alternative sources of energy.

Question: Which country released more carbon dioxide into the atmosphere?
Answer: Spain

Situation: Two neighboring countries France and Spain were competing for economical supremacy in Europe. Spain dug up fossil fuels and used it as an energy source. France used alternative sources of energy.

Question: Which country released less carbon dioxide into the atmosphere?
Answer: France

Situation: Two neighboring countries France and Spain were competing for economical supremacy in Europe. Spain dug up fossil fuels and used it as an energy source. France used alternative sources of energy.

Question: Which country released less greenhouse gas into the atmosphere?
Answer: France

Situation: Two neighboring countries France and Spain were competing for economical supremacy in Europe. Spain dug up fossil fuels and used it as an energy source. France used alternative sources of energy.

Question: Which country released more greenhouse gas into the atmosphere?
Answer: Spain

Situation: Two neighboring countries France and Spain were competing for economical supremacy in Europe. Spain dug up fossil fuels and used it as an energy source. France used alternative sources of energy.

Question: Which country contributed more to air pollution?
Answer: Spain

Situation: Two neighboring countries France and Spain were competing for economical supremacy in Europe. Spain dug up fossil fuels and used it as an energy source. France used alternative sources of energy.

Question: Which country contributed less to air pollution?
Answer: France

Situation: Two neighboring countries France and Spain were competing for economical supremacy in Europe. Spain dug up fossil fuels and used it as an energy source. France used alternative sources of energy.

Question: Which country contributed less to climate change?
Answer: France

Situation: Two neighboring countries France and Spain were competing for economical supremacy in Europe. Spain dug up fossil fuels and used it as an energy source. France used alternative sources of energy.

Question: Which country contributed more to climate change?
Answer: Spain

Situation: Two villages were focused mostly on mining operation. Brown village extracted fossil fuels such as coal from their mountains, while Yellow village was mostly focused on extracting gold the old fashioned way.

Question: Which village has more of an impact on the carbon cycle?
Answer: Brown

Situation: Two villages were focused mostly on mining operation. Brown village extracted fossil fuels such as coal from their mountains, while Yellow village was mostly focused on extracting gold the old fashioned way.

Question: Which village has less of an impact on the carbon cycle?
Answer: Yellow

Situation: Two villages were focused mostly on mining operation. Brown village extracted fossil fuels such as coal from their mountains, while Yellow village was mostly focused on extracting gold the old fashioned way.

Question: Which village has less of an impact on photosynthesis?
Answer: Yellow

Situation: Two villages were focused mostly on mining operation. Brown village extracted fossil fuels such as coal from their mountains, while Yellow village was mostly focused on extracting gold the old fashioned way.

Question: Which village has more of an impact on photosynthesis?
Answer: Brown

Situation: Two villages were focused mostly on mining operation. Brown village extracted fossil fuels such as coal from their mountains, while Yellow village was mostly focused on extracting gold the old fashioned way.

Question: Which village has more of an impact on greenhouse gas levels?
Answer: Brown

Situation: Two villages were focused mostly on mining operation. Brown village extracted fossil fuels such as coal from their mountains, while Yellow village was mostly focused on extracting gold the old fashioned way.

Question: Which village has less of an impact on greenhouse gas levels?
Answer: Yellow

Situation: Two villages were focused mostly on mining operation. Brown village extracted fossil fuels such as coal from their mountains, while Yellow village was mostly focused on extracting gold the old fashioned way.

Question: Which village has less of an impact on Earth's temperature?
Answer: Yellow

Situation: Two villages were focused mostly on mining operation. Brown village extracted fossil fuels such as coal from their mountains, while Yellow village was mostly focused on extracting gold the old fashioned way.

Question: Which village has more of an impact on Earth's temperature?
Answer: Brown

Situation: Two villages were focused mostly on mining operation. Brown village extracted fossil fuels such as coal from their mountains, while Yellow village was mostly focused on extracting gold the old fashioned way.

Question: Which village has more of an impact on global climate change?
Answer: Brown

Situation: Two villages were focused mostly on mining operation. Brown village extracted fossil fuels such as coal from their mountains, while Yellow village was mostly focused on extracting gold the old fashioned way.

Question: Which village has less of an impact on global climate change?
Answer: Yellow

Situation: Two different countries produced their electricity using different methods. Burma used fossil fuels such as coal and oil, while Bhutan used renewable energy sources.

Question: Which country had a bigger impact on the carbon cycle?
Answer: Burma

Situation: Two different countries produced their electricity using different methods. Burma used fossil fuels such as coal and oil, while Bhutan used renewable energy sources.

Question: Which country had a smaller impact on the carbon cycle?
Answer: Bhutan

Situation: Two different countries produced their electricity using different methods. Burma used fossil fuels such as coal and oil, while Bhutan used renewable energy sources.

Question: Which country released more carbon dioxide into the atmosphere ?
Answer: Burma

Situation: Two different countries produced their electricity using different methods. Burma used fossil fuels such as coal and oil, while Bhutan used renewable energy sources.

Question: Which country released less carbon dioxide into the atmosphere ?
Answer: Bhutan

Situation: Two different countries produced their electricity using different methods. Burma used fossil fuels such as coal and oil, while Bhutan used renewable energy sources.

Question: Which country released less greenhouse gas into the atmosphere ?
Answer: Bhutan

Situation: Two different countries produced their electricity using different methods. Burma used fossil fuels such as coal and oil, while Bhutan used renewable energy sources.

Question: Which country released more greenhouse gas into the atmosphere ?
Answer: Burma

Situation: Two different countries produced their electricity using different methods. Burma used fossil fuels such as coal and oil, while Bhutan used renewable energy sources.

Question: Which country contributed more to a global rise in Earth's temperature?
Answer: Burma

Situation: Two different countries produced their electricity using different methods. Burma used fossil fuels such as coal and oil, while Bhutan used renewable energy sources.

Question: Which country contributed less to a global rise in Earth's temperature?
Answer: Bhutan

Situation: Two different countries produced their electricity using different methods. Burma used fossil fuels such as coal and oil, while Bhutan used renewable energy sources.

Question: Which country used non-renewable sources of energy?
Answer: Burma

Situation: Two different countries produced their electricity using different methods. Burma used fossil fuels such as coal and oil, while Bhutan used renewable energy sources.

Question: Which country didn't use non-renewable sources of energy?
Answer: Bhutan