Unit 3: Earth's Environmental Systems

The basic units of matter, the smallest units that maintain the chemical properties of an element are called

• atoms.
• lipids.
• compounds.
• molecules.

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Because of their large size, proteins, nucleic acids, carbohydrates, and lipids are together called

• elements.
• hydrocarbons.
• macromolecules.
• solutions.

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Predator-prey relationships are an example of a

• system with NO feedback.
• positive feedback loop.
• negative feedback loop.
• destablizing system.

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Which part of Earth is made of all the rock above and below the surface?

• atmosphere
• geosphere
• hydrosphere
• lithosphere

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The lithosphere is carried on a softer, but still firm, layer of rock beneath the crust called the

• asthenosphere.
• core.
• crust.
• geosphere.

Which sphere are humans a part of?

• atmosphere
• biosphere
• geosphere
• hydrosphere

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A change in state in which water returns to Earth's surface and changes from a vapor to a liquid is called

• condensation.
• evaporation.
• recharge.
• transpiration.

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Matter that organisms require for their life processes are called

• decomposers.
• fertilizers.
• legumes.
• nutrients.

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Which of Earth's spheres includes all of Earth's water?

• the hydrosphere
• the atmosphere
• the asthenosphere
• the geosphere

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The crust, mantle, asthenosphere, and core are all part of Earth's

• atmosphere.
• biosphere.
• geosphere.
• hydrosphere.

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