IF3 UNIT 8 08 WILD ANIMALS + ENVIRONMENT

(v) to cut down or destroy trees in an area

We need trees for a ___ of reasons.

• many

• variety

• lots of

• several

Organizations and ____ are working to fight illegal mining and logging.

• agencies

• activists

• private companies
• local farmers

(v) to keep and protect something from damage, change, or waste. (c...)

Reintroducing a species into the wild is always ___.

• adaptable

• currrent

• vulnerable

• risky

Among the problems mentioned every day in mass media, air pollution and water pollution are ___ the most serious ones.

• consider

• considered

• considering

Smoke can ___ serious health problems.

• bring

• give

• result

• cause

Factories which release ___ directly into rivers and seas must be fined heavily.    (pollute)

Acid rain is ___ for the destruction of many forest ecosystems.

• responsible

• responsibility

• responsibilities

• responsibly

Raw sewage, garbage, and oil ___ to the pollution of water.

• contributes

• contributed

• contribute

• contributing