Unit 1 - Khalid
- Eastern Michigan University
- English As A Second Language
- English As A Second Language 516
- Unit 1 - Khalid
Last Modified: 2014-07-26
Able to continue for long time without causing damage to the environment
substances that make air, water, soil etc dangerously dirty
a gas or other substance that is sent into the air:
someone who wants to protect the environment, and who takes part in protests which some people think are silly - used showing disapproval
someone, especially in the 1960s, who opposed violence peacefully and often wore unusual clothes, had long hair, and took drugs for pleasure
the air, water, and land on Earth
a chemical substance that exists in a pure form as diamonds, graphite etc, or in an impure form as coal, petrol etc. It is a chemical
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