Mid-Term Test Questions (Science)

What is a natural cycle?

• It's the process by which water changes from a liquid to a gas.

• It's the process by which water vapor cools and changes back into liquid.

• It describes the movement of water on, above, and below the surface.

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  It's a recurring series of events in nature that happen regularly.

What is the water cycle?

• It's the continuous movement of water on Earth and in the atmosphere.

• It's the continuous movement of CO2 on Earth and in the atmosphere

• It's the continuous movement of sulfur on Earth and in the atmosphere

• It's the continuous movement of nitrogen on Earth and in the atmosphere

What is evaporation?

• It's the movement of water over the ground.

• It's the process by which water vapor cools and changes into liquid form.

• It's the process by which water changes from a liquid to a gas.

• The process by which carbon atoms are recycled through the environment.

What is condensation?

• It's the movement of water over the ground.

• The process by which water vapor cools and changes back into liquid form.

• The process by which carbon atoms are recycled through the environment.

  
  

• It plays a key role in nitrogen fixation.

What is precipitation?

• It's a process by which carbon atoms are recycled through the environment.

• Process of this gas moving between the atmosphere, soil, and organisms.

  
  

• Process by which ammonia is converted into nitrites.

• Process by which water falls to Earth as rain, snow, sleet, or hail.

What is runoff?

• It's the movement of water over the ground, typically after precipitation.

• Enters the soil primarily through the rock weathering.

• It's the movement of gas over the ground.

• It disrupts the carbon cycle reducing trees that can absorb carbon dioxide.

What is the carbon cycle?

• Process by which carbon atoms move between the atmosphere, living organisms, and the Earth's surface. 

• Process by which carbon molecules move between the atmosphere, living organisms, and the Earth's surface. 

• Process by which carbon electrons move between the atmosphere, living organisms, and the Earth's surface. 

• Process by which carbon neutrons move between the atmosphere, living organisms, and the Earth's surface. 

How does carbon enter the atmosphere?

• Carbon enters the atmosphere through different processes.

• Carbon enters the atmosphere through radiation.

• Carbon enters the atmosphere through rainfall.

• Carbon enters the atmosphere through chemicals.

How do plants play a role in the carbon cycle?

• Plants absorb carbon dioxide from the atmosphere during photosynthesis.

• Plants absorb carbon dioxide from the atmosphere during respiration.

• Plants absorb carbon dioxide from the atmosphere during absorption.

• Plants absorb carbon dioxide from the atmosphere during nitrification.

What is the role of decomposers in the carbon cycle?

• The movement of them helps organisms, and the Earth’s crust.

• They are the movement of an element through the environment.

• They are processes in nature that happen regularly.

• They break down dead organic material, releasing nitrogen and phosphorus.