hortatory tentang lingkungan

RUBBISH

Lakes and rivers are often polluted because drains from townsand factories empty into them. And factories sometimes dump veryharmful chemicals into the water. The chemicals poison the water.Wildlife cannot easily survive in it.Ocean-going tankers sometimes empty tank fills of oily water into the sea. When this happens, great patches of oil are left floatingon the sea’s surface. If fish swallow the oil, or if their gills becomedogged up, they die. Birds land on the sea and the oil is cleaned off the birds will die.Electricity for your home is made in buildings called power  plants. Power plants usually use coal, oil, or gas to make electricity.But some plant use nuclear energy.To make nuclear energy, uranium is needed. And uranium isradioactive, which means it gives off rays which are very dangerousto any living thing. People working in nuclear power plants wear special clothing and masks to protect themselves.After the uranium has been used there is some dangerouswaste, rubbish, left. Scientists haven’t yet found out how to makerubbish completely safe. So it is sealed in huge concrete containersand buried at sea, or deep underground.Some people are worried that the radioactivity might escapeand poison living things. And this rubbish remains dangerous for thousands of years.In short, our environment has been contaminated bychemicals. And there’s human’s role beyond the pollution.Taken from Nature in Danger, 1993

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