Sedimentary, they get smashed together under the pressure of other things on top of them.
Answer: countries with high internet usage tend to have a high standard of living
Explanation: it makes the most sense
Ponds, lakes, streams, rivers, and wetlands have little salt
Answer:
Most earthquakes directly beneath a volcano are caused by the movement of magma. The magma exerts pressure on the rocks until it cracks the rock. Then the magma squirts into the crack and starts building pressure again. Every time the rock cracks it makes a small earthquake.
Explanation:
African colonies produced raw materials which were expropriated by the colonialists (centre nations). Furthermore, colonialism introduced a dual economic structure within the African economy. It also brought about disarticulation of African economy, education, trade, market, transport and currency institution.