Unit 1 Part 2 Cycles

Unit 1 Part 2

Cycles ​

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Multiple Choice

What is evaporation?

• The part of the water cycle when the sun heats up water, turning it from a liquid into water vapor or steam. It rises from the ground into the air.
• The part of the water cycle when the water vapor in the air gets cold. The water turns back into a liquid and forms clouds.
• The part of the water cycle when clouds get heavy and can no longer hold the liquid water. This causes the water to fall from the sky to the earth as rain, snow, sleet, or hail.

Multiple Choice

What is condensation?

• The part of the water cycle when the sun heats up water, turning it from a liquid into water vapor or steam. It rises from the ground into the air.
• The part of the water cycle when the water vapor in the air gets cold. The water turns back into a liquid and forms clouds.
• The part of the water cycle when clouds get heavy and can no longer hold the liquid water. This causes the water to fall from the sky to the earth as rain, snow, sleet, or hail.

Multiple Choice

Which of the following major reservoirs of carbon, stores in the form of carbon dioxide, is not represented in this diagram?

• algae

• soil bacteria

• the moon

• the ocean

Multiple Choice

Based on this diagram, which of the following processes reduces the amount of carbon dioxide in the atmosphere?

• Photosynthesis

• Cellular respiration

• Decomposition

• Burning of fossil fuels

Multiple Choice

Based on the diagram, which process most directly results in the storage of carbon as coal and oil over millions of years?

• Photosynthesis

• Cellular Respiration

• Decomposition

• Burning of fossil fuels

Multiple Choice

Which of the following pathways indicate how nitrogen is added to the largest nitrogen reservoirs?

• Nitrifying bacteria and lightning

• Decomposing plant and animal material

• Denitrifying bacteria and volcanic activity

• Nitrates taken up by plant roots

Multiple Choice

What is the formula for atmospheric nitrogen?

• N

• N₂

• NH₃

• NO₃

Multiple Choice

Which of the following would best describe X in the diagram?

• Bacteria play an important role in the conversion of compounds from the atmospheric gas to the form of the compound taken up by plants.

• Phosphorus and nitrogen are both required for plant growth.

• Volcanic eruptions are a major source of non-anthropogenic inputs.

• Processes include weathering and erosion.

Multiple Choice

Why is sulfur important to organisms?

• To make DNA, RNA and ATP.

• To make amino acids and proteins.

• To make carbohydrates.

• To make fats.

Multiple Choice

What is directly formed when the sulfur in coal is burned?

• Hydrogen sulfide

• Sulfuric acid

• Nitrogen oxides

• Sulfur dioxide