SC.4.L.17.4

In what way does a beaver dam help other living things?

• It causes water to flood burrows
• It cuts off a stream that supplies water to some plants
• It keeps soil from eroding
• It creates a pond where new plants and animals can live

Which is NOT a resource earthworms help plants get?

• sunlight
• air
• water
• nutrients

In which way does a tree change an environment?

• It helps smaller plants get more sunlight
• It creates a place for animals to live
• It adds water to the ground
• It increases erosion of soil

How has the Kudzu (an invasive plant species) changed parts of Florida?

• It has damaged other plants by blocking sunlight
• It has helped other plants get water
• It has moved large amounts of soil
• It has helped other plants get nutirents

What does deforestation mean?

• planting a new forest
• cutting down all the trees in an area
• using trees to make paper
• protecting a forest environment

When you recycle a material, what do you do?

• use too much of it
• separate it from regular trash
• use much less of it
• restore it to the way it was before people changed it

Which of these is the BEST way to protect the environment?

• develop land
• burn coal, oil, and natural gas
• conserve resources
• pollute and then restore

Which is an effect of deforestation on the environment?

• Trees grow faster
• Soil has more nutrients
• Living things lose their habitats
• More oxygen is released into the air

Which is a way to restore the environment?

• recycling paper
• cleaning up oil spills
• using wind energy
• using fewer resources

Which is a way pollution changes the environment?

• It changes habitats
• It crowds out plants
• It changes the flow of a river
• It increases the number of fish in a river