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What were the first rocks formed on the earth?
How are Basalt rocks?
Sandstone is used to _____________.
Marble is formed from_____________.
What is the meaning of coal?
What type of coal burns with a lot of smoke?
How can we prevent the wastage of petrol and diesel?
Volcanic eruptions also lead to the formation of _____________.
How is Basalt formed?
What is the most common mineral found on the earth?
Quartzite is formed from_____________.
Name the four types of coal.
Which of the following coal is considered as the best coal and also as hard coal?
What are the alternative sources of energy that can be used?
How is lava formed?
Why is basalt rock dark and black in colour?
How is shale formed?
Slate is formed from___________.
Why is lignite also called brown coal/brown diamond?
What type of coal burns with a great amount of heat and very little smoke?
We should use electricity_____________.
Lava cools and hardens to form___________.
Basalt rock is used in__________.
Shale is used to make_____________.
How is marble?
What forms the largest portion of the world’s total coal reserves?
What is coal used for?
Mining should be done in a way that prevents_________.
What are the various types of igneous rocks?
Basalt is made up of which of the following minerals?
Shale is a_____________.
Even though marble comes in different colours, what is the most common colour?
What was the earliest type of coal to be formed?
Coal is extracted from___________.
What is granite?
Basalt makes up most of the_______________ on the earth.
What is lime made out of?
What is marble used for?
Why is Peat not used often?
Name some coal mines in India.
Our earth is made up of____________.
Granite is usually in __________ colour.
A large proportion of the rocks found on the earth’s surface are___________.
Gneiss is formed from____________.
Bituminous is also called as____________.
Petroleum is also called ______________.
The colour of granite depends upon the content of____________ in it.
How are sedimentary rocks formed?
What is a very common type of limestone rock?
Which of the following rock is used to make statues, watches, glass and as a gemstone?
Which of the following is the hardest mineral according to the Mohs scale of hardness?
Petroleum is obtained from____________
Each rock contains different____________.
Which rock is used to make statues and flooring of the houses?
Why are sedimentary rocks called so?
How is limestone used?
Which of the following hard rock can cause a scratch on steel and is clear and colourful?
Metal obtained from calamine mineral is____________.
Petroleum cannot be used in its____________.
How do rocks form?
What is a special feature of granite?
The edges of this rock are very sharp.
What are conglomerate rocks?
Slate is usually _____________in colour and is used to make blackboards and slate-boards.
Which of the following metal is obtained from pyrite?
Petroleum is refined and turned into______________.
How many types of rocks are found on earth?
When lava cools quickly on the earth’s surface, it forms_________ .
What breaks the Igneous rocks into tiny fragments?
How is the texture of conglomerate rocks?
What makes gneiss shine?
The metal extracted from hematite ore is___________.
Name some places where petroleum is extracted in India.
Rocks have been classified on the basis of their__________.
Why does the pumice have several holes in it?
What are minerals?
Which of the following is also used as ornamental rocks?
Which of the following rock has dark and light bands of different colours?
Copper metal can be obtained from___________.
Petrol is used _________.
Igneous rocks are formed from__________.
Why can pumice float on water?
How is the sandstone formed?
The term metamorphic comes from____________.
Name a historical structure in Delhi that is made of red sandstone.
Lead can be obtained from____________.
Petroleum is used in _____________.
What is magma?
Pumice is used as a_____________.
What is the most common mineral found in sandstone?
Name the famous marble structure in India, which is also considered as the eighth wonder of the world.
Gold and silver are used to make_________.
Paraffin wax is obtained from petroleum and is used in making__________.
What makes the magma push towards the surface of the earth?
How does a dentist use powdered pumice?
What is the colour of sandstone?
Metamorphic rocks are formed from ______________.
What are the most valuable non-metallic minerals?
Machines, furniture, wires, coins and utensils are made with________.
Coal and petroleum take____________ to be formed.
How are Igneous rocks formed?
Which rock is used as decorative rock and also used to polish the floors?
Name the three main minerals in granite.
When igneous or sedimentary rocks are subjected to intense heat and pressure inside the earth, the mineral contents of these rock____________.
How is coal formed?
What are the most valuable non-metallic minerals?
Why should we conserve resources?