The rate of environmental changes on earth is
A. Slow, and therefore our ability to predict consequences is enhanced
B. Similar to those seen in the geologic past
C. Happening fast and consequences are uncertain
D. Unknown
Ans: C. Happening fast and consequences are uncertain
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Culture is constantly being newly created as it shapes and is shaped by politics, economics and society
Indicate whether this statement is true or false.
Gas bladders help seaweeds: a. hold tight to the seafloor
b. keep their upper portions near the surface. c. photosynthesize nutrients. d. reproduce.
Jet streaks are thought to have little to do with the development of severe thunderstorms
a. true b. false
What happens when air is saturated?
a. The air temperature equals the wet-bulb temperature. b. The relative humidity is nonetheless less than 100 percent. c. The air temperature is higher than the dew point temperature. d. An increase in temperature will cause condensation to occur. e. The temperature increases.