Part F In the original mixtures, test tube 1 contained magnesium and a zinc compound, and test tube 2 contained zinc and a
magnesium compound. A similar relationship exists between test tubes 3 and 4 and between test tubes 5 and 6.
Compare what took place in each corresponding pair of test tubes. What general conclusion can you draw?

air quality

poor drinking water

and heavy polution

can lead to poor health

b. examine and describe cells

hurricanes form when warm, moist air from the ocean surface quickly rises into the atmosphere and forms storm clouds and rain. when the clouds are formed, heat is released which warms the cool air in the upper regions of the atmosphere so that the cycle can continue. which two phases of the water cycle are repeated in this process?