Much of the earth’s heat is retained in the
crust.
wind.
oceans.
mountains.

Compare and contrast physical changes with chemical changes.

How many moles of al3+ ions are in 1.25 moles of al2o3

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a.the mitochondria b.the nucleus c.the vacuoles d.the endoplasmic reticulum