Understanding the Carbon Cycle

What is the primary source of increased carbon dioxide in the atmosphere today?

• Volcanic activity

• Burning of fossil fuels

• Photosynthesis in plants

• Natural forest regrowth

Tags

NGSS.MS-ESS3-5

Which gas primarily controls the Earth's temperature?

• Nitrogen

• Carbon dioxide

• Hydrogen

• Oxygen

Tags

NGSS.MS-ESS3-5

NGSS.MS-ESS3-4

What happens to carbon dioxide when it dissolves in ocean water?

• It is expelled back to the atmosphere

• It forms solid carbon structures

• It forms carbonic acid, increasing water acidity

• It evaporates immediately

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-2

How might burning fossil fuels be creating global warming?

• Because fossil fuels will be all used up in a few decades

• Because burning fossil fuels is a very dangerous process

• Because fossil fuels are not compatible with the new biofuel

• Because burning fossil fuels adds CO₂ to the atmosphere faster than it can be removed

Tags

NGSS.MS-ESS3-5

What element is essential for most life on Earth and plays a significant role in the atmosphere?

• Oxygen

• Hydrogen

• Nitrogen

• Carbon

Which two forms of carbon are found in the atmosphere?

• Carbon Monoxide and Sulfur Dioxide

• Carbon Dioxide and Methane

• Methane and Carbon Monoxide

• Oxygen and Nitrogen

What process do plants use to absorb atmospheric carbon?

• Transpiration

• Digestion

• Photosynthesis

• Cellular respiration

Tags

NGSS.MS-LS2-3

NGSS.MS-LS1-6

What do animals release during digestion that affects the carbon cycle?

• Hydrogen

• Methane

• Nitrogen

• Oxygen

Tags

NGSS.MS-LS2-3

Which type of organisms help release carbon into the atmosphere from the soil?

• Autotrophs

• Decomposers

• Mammals

• Amphibians

What are the main fossil fuels mentioned that store carbon in the Earth's interior?

• Natural Gas, Biomass, and Uranium

• Biomass, Oil, and Coal

• Uranium, Coal, and Oil

• Coal, Oil, and Natural Gas