单项选择题
Since the 1950s, we have destroyed more than a third of our natural world. Our way of life has caused many serious environmental problems. We use huge amounts of natural resources and produce too much rubbish. Pollution is changing the Earth’s climate and our planet is getting hotter. The big question is: Will things ever change for the better
There are some scientists who are full of hope that something good will happen. They believe that with the help of science and strict laws today’s environmental problems will disappear in the future. Other scientists are pessimistic (悲观的): They believe that environmental problems are getting worse and soon it will be too late to save the environment. Let’s see what predictions those pessimistic scientists have made about life on Earth in the year 2100 :
●The Earth’s population will probably be 22.2 billion.
●The Earth’s temperature will be 1.4 to 5.8 degrees higher than it is today. The ice at the North and the South Poles will melt and the sea level will rise by 9 to 88 cm. Cities at or below sea level will be submerged.
●Half of the Earth’s plants and animals will disappear along with tropical rain forests.
●We will use up all the Earth’s natural resources. People won’t be able to survive on Earth, so they will have to find a new planet to live on.
A. They would remain at sea level.
B. They would sink in the sea water.
C. They would rise by 9 to 88 cm.
D. They would stay below sea level.