A desert is a dry, barren landscape which receives an annual rainfall of less than 25 centimeters. Deserts cover about one-fifth of the total land are

Meteorites are solid debris that originates in outer space and survives through the passage of the earth’s atmosphere to reach its surface. Due to h

Rocks are naturally occurring solid masses or aggregates of minerals, which make up the outer layer of earth, known as the earth’s crust. They are c

A volcano is an opening on the earth's surface through which molten rocks, lava, volcanic ash, debris, and gases from the magma chamber reach the eart