1. Disease-causing _ are most likely to be found in hot, damp regions.
Keywords: disease – causing, most likely, found, hot, damp regions.
This gap needs a noun, something or someone that can cause diseases. In the paragraph about the disease called malaria (paragraph B), the author mentioned “tropical regions that foster a warm and damp environment in which the mosquitos that can give people this disease can grow”. So, the writer tell us that mosquitos that can cause malaria to spread in a warm and damp environment. Therefore, what we have to find out here is “mosquitos”. The answer is mosquitos.
Answer: mosquitos
1. One cause of pollution is _ that burn a particular fuel.
Keywords: cause of pollution, burn, particular fuel In paragraph C, the author named some causes of pollution. They are the massive number of cars being driven , factories that run on coal power, and the rapid industrialisation of some countries. Among them causes, factories is the word that relates to “run on coal power”, which means burns a particular fuel (coal – to be more specific). Therefore, the answer is factories.
Answer: factories.
1. The growth of cities often has an impact on nearby
Keywords: the growth of cities, impact, nearby
In the last sentence of paragraph C, the author explained why the rapid industrialization of some countries can cause pollution. “The rapid industrialisation of some countries in recent years has also led to the cutting down of forests to allow for the expansion of big cities, which makes it even harder to fight the pollution with the fresh air that is produced by plants.” “The expansion of big cities” can be seen as “the growth of cities”. To make way for the growth of cities, they have to “cut down forests”. We can say it has an impact on nearby forests. The answer is forests.
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