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1. The Earth is (overpopulated). There are over 6 (billion) people in the world.2. 2. Many rivers and lakes are seriously (polluted). More and more people are (drinking ) dirty water.3. 3. (Millions ) of trees are cut down each year. The Earth is covered by fewer and fewer (forests).4. Due to the (greenhouse ) effect, the ice in the Atlantic and Antarctic is (melting). In a century, several countries and many cities will be covered by water.5. Illegal (hunting ) still exists. Because of human (activities), many species have disappeared, and more will disappear in the near future.1.Mary painted her living room blue.(living room )Mary painted her living room blue.(Mary )Mary painted her living room blue.(her )Mary painted her living room blue.(painted )Mary painted her living room blue.(blue)2.This is my book.(book)This is my book.(This )This is my book.(is )This is my book.(my )3.I bought a red shirt.(I )I bought a red shirt.(shirt)I bought a red shirt.(bought )I bought a red shirt.(red )Which of the following statements is true?(c)How many years did the study cover?(b)A severe winter storm in _ killed hundreds of millions of monarch butterflies. (c)Under what conditions are monarch butterflies likely to die? (b)Which of the following is NOT an effect of rising temperatures on wildlife?(d)According to many scientists, _ the major cause of the warmer weather.(b)1. What was the first artificial source of air pollution?(b)2. Marco Polo learned of the uses of coal when _.(c)3. What punishment did the blacksmith receive for violating the sea coal law in the 14th century?(c)4. When did coal become an important fuel in York of old England?(b)1. In the distant past, frequent eruptions of volcanoes polluted the (atmosphere), killing plants, animals, and (any people) who could not escape.2. Agricultural practices such as slash and burn, which is still (in use) today, (contributed to) the pollution of the air.3. In (1273), the burning of sea coal was banned in England. This is the (earliest record) of an actual air pollution regulation.4. As communities grew (in size), the (problems) with air pollution increased.5. The change from (traditional fuel) to coal caused many (objections) because of the smoke.(1) (I see the end of all lives )(2) (Im about to start the rain)!(3) (no permission to build the Ark),(4) (Getting the wood was another problem).(5) (Im trying to leave the country illegally)
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