Reading comprehension Home Exercise -06, PASSAGE B

PASSAGE B

We know that gold and silver are elements. An element consists of atoms of only one kind, unlike water, which consists of both hydrogen and oxygen.

Another element is radium. Radium is especially interesting, because it produces heat. When soil is carried by rivers down to the sea and falls to the bottom, it often carries radium in it. As more and more soil is washed down into the ocean, more and more radium is carried in it. There, as elsewhere, it constantly produces heat.

5.       This story is mainly about-

1.       A heat – producing element.

2.       Gold and silver

3.       Soil that is washed down into oceans.

4.       Atoms of only one kind.

               6.       Oxygen and hydrogen –

1.       Are not in the same class as silver and gold.

2.       Are unlike water

3.       Are elements

4.       Are not elements

            7.       Some heat on the ocean floor comes form __

1.       Oxygen and hydrogen.

2.       Radium

3.       The water from rivers

4.       Gold and silver.

            8.       One heat- producing element is _

1.       Gold

2.       Silver

3.       Radium

4.       Hydrogen.

Answer:

5.       1

6.       3

7.       2

8.       3