Varves are best developed near glaciers because they represent light colored layers of coarser material deposited in the summer when the streams issuing from glaciers have more energy to erode coarser material compared to the fine silts and clay of the winter months when there is very little flow and very little erosion. They mostly occur in glacial lakes.
Most lakes were formed from Melting glaciers. Because when the glaciers melted they became lakes.
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Nigeria is very hot, if you see pictures of Nigeria you can see how the sun is shining very brightly on the houses and on people. Their color of their skin are adapted to support the sun hot temperature.
Tourism is the LARGEST industry in the world.
