Studies Weekly 23

What lived on Earth before people?

• only plants and animals

• nothing

Over time, the number of people on Earth ______.

• got smaller

• got larger

People built ______ to get from one place to another.

• houses

• roads

_________ resources are things found in nature.

• Natural

• Normal

The changes people make to their communities have consequences.

• Yes

• No

Which of the following is something we should NOT do?

• Recycle

• Ride Bikes

• Leave the lights on

• Take shorter showers

Animals that are _____ are gone forever.

• extinct

• lost

There are ______ jams on many roads.

• pollution

• traffic

_____ makes the air and water in many places very dirty.

• Pollution

• Roads

Technology helped to change the way people lived.

• Yes

• No