Environmental Science Review 2

Environmental Science Review 2

Multiple Choice

Which process is NOT a way that carbon enters the atmosphere?

• cellular respiration

• volcanic eruptions

• plant transpiration

• fossil fuel burning

Multiple Choice

Which statement does NOT describe an effect on the carbon cycle when humans clear-cut forests?

• Plants that contain stored carbon are destroyed.

• Less carbon precipitates to the ground as acid rain.

• Soil releases carbon from decayed plant matter into the atmosphere.

• There are fewer plants to remove carbon dioxide from the atmosphere.

Multiple Choice

Which statement best describes the effect that an increased amount of atmospheric carbon has on plants?

• Plants will require less water to be absorbed.

• Plants will decrease their rate of transpiration.

• Plants will require more sugar to create energy.

• Plants will increase their rate of photosynthesis.

Multiple Choice

Which statement best explains how the animals in the diagram contribute to the carbon cycle?

• They eat plants and other organisms that contain carbon which prevents it from ever being stored.

• They eat plants and other organisms which contain carbon and deposit carbon into the soil when

  they die.

• They remove carbon from the atmosphere during respiration and replace it with oxygen that is used

  in photosynthesis.

• They remove carbon from the soil during respiration and exchange it with oxygen that evaporates

  into the atmosphere.

Multiple Choice

Which list best identifies the processes that move carbon through an ecosystem?

• photosynthesis, respiration, consumption, decomposition, erosion, and burning

• respiration, transpiration, weathering, consumption, burning, and sedimentation

• respiration, transpiration, decomposition, weathering, sedimentation, and infiltration

• photosynthesis, respiration, sedimentation, infiltration, erosion, and decomposition

Multiple Choice

Which picture represents the lowest level of organization?

• Individual

• Population

• Community

• Ecosystem

Multiple Choice

Where does most of Earth's available carbon come from?

• the constant process of photosynthesis

• sunlight that is transferred from the Sun to Earth

• the convection process that occurs in Earth's mantle

• dead organisms that are recycled back into the environment