is a type of mass movement where regolith detaches and slides downslope along a spoon-shaped plane and comes to rest more or less as a unit.

Exposed great deposits of coal and iron ore

Answer( genes );

When a lake, river or other aquatic  system  becomes  eutrophic, it can have serious negative effects on other organisms like fish, birds and even people.if an algal bloom is so bad that it causes wide-spread death  in  the  water, the organisms that die will all sink to the bottom and start to decompose.

The saharan africa is desert not forest