Minerals, Ores and their Formation

Q.

The impurities present in a crude ore is called gangue.

1. True

2. False

Q. Mica is a/an ___ mineral.

1. non-metallic
2. energy
3. gemlike
4. metallic

Q. ______ is a mineral resource which is used for producing atomic energy.

1. Magnesium
2. Sodium
3. Thorium
4. Potassium

Q.

All ores are minerals whereas all minerals are not ores.

1. True

2. False

Q. A substance from which metal can be extracted economically is known as ____.

1. ore
2. rock
3. gangue
4. mineral

Q. Which among the following has the largest storage of carbon?

1. Organisms
2. Oceans
3. Rocks
4. Atmosphere

Q. What is the most common element found in the Earth's atmosphere?

1. Hydrogen
2. Nitrogen
3. Carbon
4. Oxygen

Q. Which of the following is a greenhouse gas?

1. Methane
2. Nitrogen
3. Oxygen
4. Hydrogen

Q. Which of the following fixes atmospheric nitrogen into the soil?

1. Animals
2. Birds
3. Microbes
4. Plants

Q. What is the primary driving force for water cycle?

1. Wind
2. Clouds
3. Moon
4. Sun