That is false, all muslims that can financially make the pilgrimage to the holy site of Mecca are required. The holy pilgrimage to Mecca, also called Hajj, is one of the 5 pillars of Islam.
In the earths mantle the convection currents pass through the mantle which then causes friction in the tectonic plates causing earthquakes,volcanoes or tsunamis
Bodies of water often were used to create borders EX: in the eastern united states the states borders are rivers because it is easier than making imaginary borders
The Andes have formed as a result of a subduction zone while the Himalayas have formed as a result of a convergent plate boundary.
Antarctica has the smallest population
