Interactions of Earth's Spheres

A forest fire was caused by a lightning strike in Split Oak Forest. Which of the following statements is a possible interaction of two spheres after the forest fire was put out?

• The birds in the forest will have more nesting sites in trees.

• The river will provide more water for the local plant and animal life.

• The air will contain more water vapor increasing the amount of rainfall.

• The loss of plant life causes the land to become more exposed to erosion.

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Matthew wanted to study the interactions of the Earth’s spheres. He decided to make a model of the Earth to observe. He built a terrarium containing rocks, soil, plants, and air. He added some water to wet the soil and sealed it shut. Which of the following describes an interaction between Earth’s spheres in his model?

• The rocks (cryosphere) provide nutrients to the plants (biosphere).

• The air (atmosphere) will provide nutrients to the plants (hydrosphere).

• The soil (geosphere) will hold the water that the plants (biosphere) will absorb.

• The water (biosphere) will provide moisture to the plants (geosphere) so they can grow.

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When plants and animals die, their remains decay and release nutrients back into the soil. The nutrients in the soil help future plants grow. Which of Earth's spheres are interacting?

• biosphere and geosphere

• atmosphere and biosphere

• biosphere and hydrosphere

• atmosphere and geosphere

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Which description below is an example of an interaction between the geosphere and hydrosphere?

• Humans build a bridge out of rock materials.

• Plants take in carbon dioxide and release oxygen.

• Ocean waves break on the shore, eroding rocks and sand.

• Evaporation occurs from lakes and rivers eventually forming precipitation.

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Which of the following describes an interaction between the cryosphere and hydrosphere?

• The ice in your glass of water melts on a hot day.

• The water in your dog’s bowl evaporates into the air.

• The soil and rocks get wet from a summer rainstorm.

• Water vapor condenses to form rain that helps grass grow.

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Examine the image below. Which statement best describes how Earth's spheres are interacting?

• The hydrosphere and the biosphere are interacting when the rocks fall into the ocean below the cliffs.

• The hydrosphere and the atmosphere are interacting when the rocks fall into the ocean below the cliffs.

• The hydrosphere and the geosphere are interacting when waves from the ocean water crash onto the rocks.

• The hydrosphere and the cryosphere are interacting when waves from the ocean water crash onto the rocks.

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