The atmsphere of the Earth cuts off about fifty percent of the Sun's heat, bouncing back into space.
답 C
Over a thousand quasars are known, discovered due to their radio emissions.
the majority having been(답)
Many historians believe that legends often involve actual people or event, but that certain elements have been changed through generations of storytellers.
답 B
Anthropology holds up a great mirror to humanity and lets us to look at ourselves in our infinite diversity
답 C
A particular kind of bamboo with tough stems reaches heights of 120 feet.
답 a foot thick
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