…….WAS LOWERED TO THE SEABED IN A GLASS CONTAINER TO MAKE OBSERVAT...

40. …….was lowered to the seabed in a glass container to make observations is debated.

A. Alexander the Great who

B. Alexander the Great

C. Whether Alexander the Great D. What Alexander the Great

indicate the correct word or phrase to fill in the blank in the following passage from 21 to 30.

Earth is the only place we know of in the universe that can support human life(21)______ human activities are

making the planet less fit to live on. As the western world carries on consuming two-thirds of the world's resources while

half of the world's population do so (22)______ to stay alive we are rapidly destroying the (23)______ resource we have

by which all people can survive and prosper. Everywhere fertile soil is (24)______ built on or washed into the sea.

Renewable resources are exploited so much that they will never be able to recover (25)______ We discharge pollutants

into the atmosphere without any thought of the consequences. As a (26)______ the planet's ability to support people is

being reduced at the very time when rising human numbers and consumption are (27)______increasingly heavy demands

on it.

The Earth's (28)______ resources are there for us to use. We need food, water, air, energy, medicines, warmth, shelter and

minerals to (29)______ us fed, comfortable, healthy and active. If we are sensible in how we use the resources they will

(30)______ indefinitely. But if we use them wastefully and excessively they will soon run out and everyone will suffer.