Human Affects Major Review

The act of supplying of water to land or crops is called...

• urbanization

• irrigation

• reforestation

Perforating the soil with small holes to allow air, water and nutrients to penetrate the grass roots is called...

• erosion

• migration

• aeration

This is a picture of...

• migration

• irrigation

• aeration

This is a picture of...

• erosion

• reforestation

• aeration

Which of the following is an example of pollution?

• Throwing trash on the ground
• Spilling oil into the ocean
• Burning fossil fuels
• All of these!

The activity shown in the picture is harmful because...

• it destroys the habitat of living thing

• living things won't have food sources

• it causes soil erosion

• all the answer are correct

When the trash enters the river...

• the land is dirty and smelly

• the living things in the water can survive

• the water is polluted

What can we do to care for this environment?

• clear up the trash

• take public transportation

• plant trees

• burn the trash

Which of these human actions is good for the environment?

• Cutting down trees

• Dropping litter

• Protecting animals

Why is plastic in the ocean a big problem?

• It looks messy.

• Animals may eat it.

• It's not a problem.