When photons of electromagnetic radiation bounce off of a surface they are said to be
A) emitted
B) refracted
C) absorbed
D) reflected
D
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Hydrocarbon fuels come from
A) the original geological processes that formed planet Earth billions of years ago. B) lava flows from volcanoes that erupted millions of years ago. C) Disneyland. D) hydrocarbon ores that are mined and then milled in order to extract the small fraction of hydrocarbon in them. E) the remains of plants and animals that died millions of years ago.
The actual age of rock layers and geologic events is referred to as ______________ geologic time
Fill in the blank(s) with correct word
__________ radiation causes your skin to tan
Fill in the blank(s) with correct word
The "Big Bang" refers to the
A) point in time in which the known (and perhaps knowable) universe came into being. B) phenomenon of rapid chain reaction supernovae during the first 100 seconds of the universe. C) time when our Sun will become a nova, rendering Earth into molten lava. D) end of the universe when simultaneous supernovae will transform the universe into a supergiant black hole.