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Earn 100

Marble is formed by limestone.

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Important Questions on Minerals and Metals

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Write down the process of evolution of fossil fuels on Earth.
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Fill in the blank with a suitable word:

The rock which is burnt to produce fire is _____ (coal/diamond).

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The main gas found in natural gas is _____

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Fill in the blanks by choosing the words from the list given below:

List: Methane, pitch, youngest, coke, natural

Natural gas mainly consists of _____ gas.

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Wood and coal can be burnt to get energy. They are _____(fuels/minerals).

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Mined coal and petroleum are _____ fuels.
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Those minerals from which metal is extracted are called _____. (galvanization/ ore)
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(Electricity, early man, nylon, cook, deforestation, protecting.)

Coal is burnt to produce _____.

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Unscramble the jumbled letters and fill in the blank: LOAC

_____ is used to run steam engines.

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Coal, natural gas and petroleum are together known as _____ fuels.
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Choose the right word and fill in the blank:

Coal and petrol have energy stored in them. They are called _____. (foods/ fuels)

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Fe3O4 is the chemical composition of _____ ore.
MEDIUM
Fuels which are formed by the decomposition of dead plants and animals are called _____.
HARD

Exhaust gases from vehicle contain _____ (poisonous gases, non-poisonous gases)

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Fill in the blank with a suitable word:

These places contain thick deposits of coal are Dhanbad, Neyveli and Raniganj located in _____ (Delhi/Bengaluru).

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During the _____ period, Earth was covered with swampy forests. (Cambrian/Devonian/Carboniferous)
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Coal and petroleum are formed from the dead remains of organisms and are known as _____.
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Fill in the blank with the appropriate word:
_____ (Diamond/Anthracite) is a shiny hard black coal.
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Fill in the blank with the correct word given in the bracket.

_____ [coal/water] is used as natural fuel.

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(petroleum, marble, mine, ores)

_____ is formed by the decomposition of matter - both animal and vegetable.