Luyện tập: Water Pollution - Khóa học sinh viên Drive

Pollution of rivers, lakes and seas is a major concern for people who seek to protect the environment. What are the possible causes of water pollution, and what effects does this have on animal life and human society?

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Topic statementWater contaminationsự ô nhiễm is a serious form of pollution, and one that can be challenging to rectify. Supporting statementThere seem to be two main causes involved, and a variety of damaging effects on people and the biospheresinh quyển, which we will discuss here.

Topic statementProbably the main factor is the issue of emissionssự thải ra from cars, factories and other human activities. Supporting statementThese emissions contain damaging pollutant particleshạt vật chất ô nhiễm which can contaminate rainwater run-offdòng chảy and thus enter the water cyclevòng tuần hoàn nước, by transferring through the water table into aquiferstầng ngậm nước, streams and rivers. Supporting statementFiltrationphương pháp lọc and processing are not really viablekhả thi options for such large volumes of water, and so the water tablemực nước ngầm remains taintednhiễm bẩn with these elements over long periods, as we see in Eastern Europe today. Supporting statementIn situations where soil erosionsự xói mòn đất and loggingđốn gỗ have already damaged the local environment, the accumulation can be very serious. Topic statementThe other major cause is accidental or deliberate dumpingđổ rác of wastechất thải products in places outside of controlled landfillslấp rác or waste processingxử lý xác thải centres. Supporting statementEven small amounts of abandoned waste can enter water supplies through the ground, often undetectedkhông được phát hiện.

Topic statementThe effects on animal life can be severe, especially for species which are already endangered by such threats as poachingsăn trộm, habitat losssự mất môi trường sống and food chainchuỗi thức ăn disruptionsự gián đoạn. ResultContaminated water can lead to dwindling numberssố lượng suy yếu or even potential extinction, as may indeed happen to the Asian tiger populations. ResultThe impact on human society can also be distressinglàm lo âu, including the poisoning of drinking water, faminenạn đói or droughthạn hán due to lack of safe irrigationthủy lợi, and long-term loss of land as we see, for example, after the Bhopal poisoning catastrophethảm họa in India. Supporting statementSuch effects tend to have an especially gravenghiêm trọng impact on the very poorest in society, with the least resources to counter the environmental effects.

OpinionOverall, we see that emissions and dumping are the main origins of the problem, and that the effects on both humans and animals are exacerbatedlàm trầm trọng by the existing environmental, criminal or social problems.

exacerbatedgravedroughtfaminedwindling numbersdisruptionfood chainwaste processingdumpingloggingfiltrationaquifersrun-offpollutant particlesthe biospherecontaminationemissionsthe water cycleviablewater tabletaintedsoil erosionwastelandfillsundetectedpoachinghabitat lossdistressingirrigationcatastrophe

Water sự ô nhiễm is a serious form of pollution, and one that can be challenging to rectify. There seem to be two main causes involved, and a variety of damaging effects on people and sinh quyển, which we will discuss here.

Probably the main factor is the issue of sự thải ra from cars, factories and other human activities. These emissions contain damaging hạt vật chất ô nhiễm which can contaminate rainwater dòng chảy and thus enter vòng tuần hoàn nước, by transferring through the water table into tầng ngậm nước, streams and rivers. phương pháp lọc and processing are not really khả thi options for such large volumes of water, and so the mực nước ngầm remains nhiễm bẩn with these elements over long periods, as we see in Eastern Europe today. In situations where sự xói mòn đất and đốn gỗ have already damaged the local environment, the accumulation can be very serious. The other major cause is accidental or deliberate đổ rác of chất thải products in places outside of controlled lấp rác or xử lý xác thải centres. Even small amounts of abandoned waste can enter water supplies through the ground, often không được phát hiện.

The effects on animal life can be severe, especially for species which are already endangered by such threats as săn trộm, sự mất môi trường sống and chuỗi thức ăn sự gián đoạn. Contaminated water can lead to số lượng suy yếu or even potential extinction, as may indeed happen to the Asian tiger populations. The impact on human society can also be làm lo âu, including the poisoning of drinking water, nạn đói or hạn hán due to lack of safe thủy lợi, and long-term loss of land as we see, for example, after the Bhopal poisoning thảm họa in India. Such effects tend to have an especially nghiêm trọng impact on the very poorest in society, with the least resources to counter the environmental effects.

Overall, we see that emissions and dumping are the main origins of the problem, and that the effects on both humans and animals are làm trầm trọng by the existing environmental, criminal or social problems.