The Earth appears blue from outer space because:
It reflects more blue color
It has more blue objects in it
It has no other colors in it
Two third of its surface is covered with water
Which is a hard mineral?
Crockery
China clay
Gemstone
Talc
Talc is used for:
Making crockery
Making floorings
Making statues
Making talcum powder
Which mineral is used for making crockery?
Granite
The world’s largest source of energy for the production of electricity is:
Coal
A great deal of the earth's usable fossil fuels are found in:
Shale
Slate
Diamond
Which is the planet that supports life?
Mars
Jupiter
Earth
Pluto
Which is an important mineral?
Gold
Steel
Rocks are classified into:
Three
Four
Five
Two
Which is the world’s most popular and sought after gemstone ?
Ruby
Emerald
