Which definition best describes global warming? a. a long-term change in the earth's climate b. a long-term increase in the earth's average temperature c. a long-term change in the climate of a region or a city d. solar heat that is radiated out into space

In this experiment you were asked to present three possible mechanisms. describe those mechanisms here and include drawings of those mechanisms. how will the bromination of trans-cinnamic acid and trans-stilbene allow you to distinguish between the three possibilities? what would you expect to find in your data in each scenario?

Fossils can only be formed when? if mud, silt or tar is in the area to preserve the fossil ierosion does not occur and allows the fossil to form oxygen and microorganisms cannot decay the bones the area is dry and does not contain mud or silt

Compare the depth of field when focusing with low power and high power. which power has the greater depth of field?