Lesson #4:The Hydrosphere

List three ways in which water is important to living things.

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The earth has four spheres (or domains)

Name the missing two. biosphere, lithosphere,

Nutrient cycles are composed of two parts, the (processes / reservoirs) which move the

nutrients and the (processes / reservoirs) which store them.

• processes

• reservoirs

Nutrient cycles are composed of two parts, the (processes / reservoirs) which move the

nutrients and the (processes / reservoirs) which store them.

• processes

• reservoirs

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In the water cycle, water molecules move from the ocean to the atmosphere through the

process of

• transpiration

• evaporation

• condensation

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What important role do decomposers play in the nitrogen cycle?

• Decomposers are long term reservoirs for the nitrogen.

• Decomposers help the nitrogen in dead organisms return to the soil in the form of

  ammonia and nitrates.

• Decomposers help in nitrogen fixation.

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Name an example for for a reservoir for carbon.

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Name an example for for a reservoir for nitrogen.

Name an example for for a reservoir for water

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Which of the following is not part of the carbon cycle?

• evaporation

• respiration

• photosynthesis

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