1. Vocabulary

2. Reserve Reserved area for specific purposes. Example:
Torres del Paine is a national reserve.
Animal’s reserves look for taking care of endangered species.

3. Survive Continue to exist. Example:
The fireman survived after the accident.
Cockroaches have survived for millions of years.

4. Dangerous A person, animal, thing, or activity could harm you.
Example:
His parents don’t let him play hockey because they think is dangerous.
Walking home alone could be dangerous.

5. Illegal Something that is not permitted by law. Example:
Hunting animals is illegal in many places.
Taking things that aren't yours is illegal.

6. Hunter A person who kills for food or sport. Example:
The hunter shot an elephant.
The hunters were hours pursuing their prey.

7. Without Not having or doing something. Example:
I went to school without my umbrella.
She is doing the test without enthusiasm.

8. Step An action in a series of actions taken for a particular purpose.
Example:
We need to take drastic steps to reduce pollution.
If you want to cook, there are many steps you have to follow.

9. Root cause The basic cause of something. Example:
The root cause of obesity is fast food.
There are many root causes that explain pollution in the city.