1.when the air is very dirty we usually say it is a) nasty b) polluted c) not clean 2.the thing which pollutes the air and soil is a) fertilizer b) pollutant c) pollution 3. we should protect a) the environment b) pollutants c) soil 4. ecological problems can be a) solved by people b) done c) thought by business. 5. a person who doesn't eat meat is a) a strong person b) a vegetarian c) a person who hates animals. 6.if you protect the environment you a) a vegetarian b) an environmentalist c) a citizen 7.if we want to reuse things or materials we a) recycle them b) wash them c) sell them 8.if you love nature you a) a fighter b) a green person c) a gardener 9.garbage than can be easily burned a) non-combustible b) combustible c) reusable 10. garbage that can't be burned a) combustible b) reusable c) noncombustible

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