Unit Test Quiz

Some consumers, like lions, do not eat plants or any other producers. They only eat other animals.

How do lions obtain the carbon they need?

• by eating animals that have carbon-based molecules stored in their bodies

• by breathing it in from the atmosphere in the form of carbon dioxide

• by absorbing carbon-based molecules through their skin from the soil

• by drinking water that contains carbon dioxide

Answer explanation

Cycles of Matter chapter

Rosa drew a flow chart of the carbon cycle.

Which labels best complete the flow chart?

• X: Producers undergo photosynthesis.

  Y: Decomposers return carbon to the soil and release waste.

• X: Decomposers return carbon to the soil and release waste.

  Y: Producers undergo photosynthesis.

• X: Decomposers take in carbon dioxide.

  Y: Producers absorb carbon through their roots.

• X: Producers absorb carbon through their roots.

  Y: Decomposers take in carbon dioxide.

Answer explanation

Cycles of Matter Chapter

During the nitrogen cycle, through which structure are nitrogen compounds first absorb into the plant?

• roots

• leaves

• flower

• stem

Answer explanation

Cycles of Matter Chapter

The diagram illustrates the water cycle.

Which process occurs at location W?

• precipitation

• evaporation

• condensation

• transpiration

Which refers to solid ice that condenses and forms on surfaces like grass or windows?

• dew

• frost

• hail

• sleet

Which description refers to fog?

• burns off when it gets dark

• extends up to 10 miles into the sky

• is found in areas near bodies of water

• forms when the ground warms at night after a cool, dry day

Which description refers to stratus clouds?

• are thin and wispy

• are round and fluffy

• cover all or most of the sky

• form at high altitudes

Which type of precipitation is most likely to form during a thunderstorm?

• sleet

• hail

• snow

• freezing rain

A farmer is analyzing cross sections of his land to determine where to build a well.

Which phrase describes the best area to dig down to the groundwater?

• where the saturated zone is 15 meters deep

• where the water table is at 100 meters deep

• where the unsaturated zone is 50 meters thick

• where there is a 25-meter thick clay layer at the surface

A landscaper is shopping for landscaping materials. She wants to use materials through which water flows easily.

Which two materials should she choose?

• clay and gravel

• gravel and loosely packed soil

• granite and rocks with cracks

• rocks with cracks and clay