Ch. 5 Lessons 1-3 Test

What is something a tree might need to compete for?

• sunlight

• water

• space

• all of these

What is an example of a positive effect of a new bird species comes into an ecosystem?

• The birds will have to compete for space.

• The birds will have to find their food sources.

• Predators in the ecosystem will have a new food source.

• The birds' prey will be eaten more.

What is an example of a negative effect if a beaver builds a dam?

• Animals that need flowing water will have to move to a new habitat.

• Animals that like still water will enjoy the new habitat.

• Plants will have to compete for sunlight.

• Plants will gain more sunlight with trees being chopped down.

Which of the following actions from people would have a positive effect on the environment?

• leaving lights on when not in the room

• recycling

• taking 30 minute showers

• throwing away plastic bottles into the trash

Which of the following is not a renewable resource?

• ore

• animals

• plants

• water

How can energy from the sun be captured?

• using windmills

• recycling

• using solar panels

• driving cars

Why are fossils fuels used?

• They help beavers build dams.

• They are used to study fossils.

• They are burned to provide energy.

• Their minerals are turned into many products.

Most of Earth's water is ______________.

• salt water

• fresh water

• drinkable

• clean

When two animals fight for resources, they are __________.

• competing

• mining for fossil fuels

• recycling

• reducing the amount of resources

All the members in one species make up the ______________.

• community

• ecosystem

• organism

• population