Scientists may conclude the climate was very warm during a particular time if they discover many fossils of a) fish. b) birds. c) insects. d) tall trees.

What heat is removed how does a gas become a liquid

Dna is colied into chromosomes in a cell

Some mining processes involve removal of large areas of earths surface in the mined region this practice causes severe environmental damage by allowing which natural process to accelerate in the affected areas? a. precipitation b. erosion c. migration d. condensation