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Key Words

man-made natural resource renewable non-renewable

pollute burning freezing monsoon forest

floods drought erosion decaying weathering

minerals crust rocks ore metals

mining fossils remains fossil fuels conservation

Let’s Exercise
Let ’ s Ex er cise

I. Read the following and choose the correct option.

Minerals are resources that are found naturally under the earth’s crust. They

occur along with rocks. Rocks contain different types of minerals. Minerals are

found in ores.

1. Minerals are found under the earth’s .

a. core b. mantle c. crust d. ore

2. Ores are .

a. minerals b. stones c. metals d. rocks

3. are extracted from ores.

a. Rocks b. Metals c. Minerals d. Diamonds

4. The process of taking out minerals from the earth is called .

a. mining b. digging c. polishing d. conserving

5. Glass is made from .

a. metal b. plastic c. rock d. mineral

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