What would a visitor approaching Earth from space see 4.4 billion years ago?
A) a blue planet due to 71% of its surface being covered by water
B) a hot, vapor-shrouded sphere blanketed by lightning-stroked clouds
C) a supercontinent breaking apart into smaller pieces
D) a landscape dominated by continents with small bodies of water dispersed throughout
B
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A higher proportion of black daisies on Daisy World can impact the hydrologic cycle leading to
A) higher temperatures, more evaporation, and more cloud cover, with the retention of greenhouse water vapor trapping more outgoing longwave radiation. B) higher temperatures, less evaporation, and less cloud cover, with less retention of greenhouse water vapor trapping more outgoing longwave radiation. C) lower temperatures, more evaporation, and more cloud cover, with the retention of greenhouse water vapor trapping more outgoing longwave radiation. D) lower temperatures, less evaporation, and less cloud cover, with less retention of greenhouse water vapor trapping more outgoing longwave radiation.
The three "Caribbean" countries on the South America continent were former colonies of
A. England, France, Germany B. France, Spain, Portugal C. England, France, Netherlands D. Spain, Portugal, Mexico
During the light-dependent reactions of photosynthesis,
A) glucose is released. B) oxygen is released. C) glucose and oxygen are released. D) carbon dioxide is used to make glucose.
The reaction of glucose to form glucose 6-phosphate is an example of which of the following reactions?
A) addition B) condensation C) oxidation D) reduction