Class-8,Mineral and Power Resources

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Q1) What would you call a naturally occurring substance that has a definite chemical composition *

1 point

Mineral

Atmosphere

Environment

Resources

Q2) Listed below are a few important facts about Minerals. Which one among the following is not TRUE *

1 point

Minerals are composed of one or two elements and they can be identified by their physical and chemical properties

Minerals are concentrated in a particular area or rock formations

Minerals are evenly distributed over space

Some minerals are found in areas that are not easily accessible

Q3) Minerals can be identified on the basis of their physical properties. Which one among the following is not a physical property with respect to the minerals? *

1 point

Hardness

Colour

Density

Presence of Sulphides

Q4) Which one of the following best defines a rock which contains enough mineral to make it economically viable for mining *

1 point

Silicate

Ore

Crust

Feldspar

Q5) Complete the following in the same order of the sequence as it comesIn the ________ grade ores, the mineral content is high and impurities are less. In the __________ grade ores mineral content is low and impurities are more. *

1 point

Ferrous and Non ferrous

Metallic and Non-metallic

High and Low

Old and new

Q6) Complete the following on the basis of Composition, Minerals can be classified as : *

1 point

Drilling and Quarrying

Metallic and Non-Metallic

Mining and Drilling

Ferrous and Non-Ferrous

Q7) Analyse the following and complete the blank *

1 point

Drilling and Mining

Open Cast and Shaft

Ferrous and Non-ferrous

Mining and Quarrying

Q8) Which one of the following contain metal in raw form *

1 point

Quarried Minerals

Non-metallic minerals

Metallic minerals

Drilled Minerals

Q9) Which one of the following best describe a Metal? *

1 point

Substances without any physical properties

Hard substances that conduct heat and electricity and have a characteristic lustre or shine.

A substance without any definite shape

Substances without chemical composition

Q10) Some examples of minerals are given below, pick out the one that is not a metallic mineral *

1 point

Gold

Iron Ore

Bauxite

Limestone

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