Carbon and Water Cycles

What is the carbon cycle?

• The carbon cycle is the process by which carbon is exchanged between the atmosphere, land, oceans, and living organisms.

• The carbon cycle is the process by which carbon is exchanged between the atmosphere and the moon.

• The carbon cycle is the process by which carbon is exchanged between the atmosphere and the sun.

• The carbon cycle is the process by which carbon is exchanged between the atmosphere and the stars.

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What are the main sources of carbon dioxide in the atmosphere?

• Human activities

• Volcanic eruptions

• Natural decay of organic matter

• Photosynthesis

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How do plants remove carbon dioxide from the atmosphere?

• respiration

• transpiration

• photosynthesis

• combustion

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What is the role of photosynthesis in the carbon cycle?

• Photosynthesis helps remove carbon dioxide from the atmosphere and store it in the form of organic compounds.

• Photosynthesis converts carbon dioxide into oxygen.

• Photosynthesis has no role in the carbon cycle.

• Photosynthesis releases carbon dioxide into the atmosphere.

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What happens to the carbon stored in plants when they die?

• The carbon is transported to the ocean and stored in marine organisms.

• The carbon is released back into the environment through decomposition or combustion.

• The carbon is absorbed by the soil and remains there indefinitely.

• The carbon is converted into energy for other organisms.

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What are the main processes involved in the water cycle?

• evaporation, condensation, precipitation, and combustion

• evaporation, condensation, precipitation, and runoff

• evaporation, condensation, precipitation, and respiration

• evaporation, condensation, precipitation, and absorption

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What is evaporation and where does it occur in the water cycle?

• Evaporation is the process by which water changes from a liquid to a gas or vapor. It occurs in the water cycle when the sun's heat causes water from oceans, lakes, rivers, and other sources to turn into water vapor and rise into the atmosphere.

• Evaporation is the process by which water changes from a liquid to a solid. It occurs in the water cycle when water vapor solidifies and turns into snow.

• Evaporation is the process by which water changes from a gas to a solid. It occurs in the water cycle when water vapor freezes and turns into ice.

• Evaporation is the process by which water changes from a solid to a liquid. It occurs in the water cycle when water vapor condenses and turns into liquid water.

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What is condensation and where does it occur in the water cycle?

• Condensation is the process by which liquid water turns into water vapor. It occurs in the water cycle when clouds absorb heat from the sun.

• Condensation is the process by which water vapor in the air cools and changes into liquid water. It occurs in the water cycle when warm air rises and cools, forming clouds.

• Condensation is the process by which water vapor in the air turns into solid ice. It occurs in the water cycle when warm air rises and cools, forming clouds.

• Condensation is the process by which water vapor in the air turns into gas. It occurs in the water cycle when warm air rises and cools, forming clouds.

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What is precipitation and how does it contribute to the water cycle?

• Precipitation is the process by which water in the atmosphere condenses and falls to the Earth's surface in the form of rain, snow, sleet, or hail. It contributes to the water cycle by replenishing the Earth's water supply.

• Precipitation is the process by which water in the atmosphere condenses and rises to the Earth's surface. It contributes to the water cycle by causing floods.

• Precipitation is the process by which water in the atmosphere freezes and forms clouds. It contributes to the water cycle by creating droughts.

• Precipitation is the process by which water in the atmosphere evaporates and rises to the Earth's surface. It contributes to the water cycle by reducing the Earth's water supply.

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What is runoff and how does it affect the water cycle?

• Runoff is the movement of water from land to underground aquifers, reducing water availability and causing droughts.

• Runoff is the movement of water from rivers, lakes, and oceans to land, replenishing groundwater and increasing water availability.

• Runoff is the movement of water from land to the atmosphere, increasing humidity levels and causing more rainfall.

• Runoff is the movement of water from land to rivers, lakes, and oceans. It affects the water cycle by carrying pollutants, nutrients, and sediments into bodies of water, altering their quality and contributing to erosion and flooding.

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