What is a nebula?
A. Material ejected from a meteor crater
B. A rotating cloud of cosmic dust and gas
C. A very large solar flare
D. A type of ancient volcanic eruption
Answer: B
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Describe the concept of an anthropogenic biome. In which anthropogenic biome do you live?
What will be an ideal response?
What is the ideal way, if cost is no object, for a telescope to avoid atmospheric disturbance?
A) Place it in a very dry climate, like the deserts in Chile. B) Place it on land, as far from the ocean as possible. C) Place it on a very high mountain. D) Place it in space.
The river which carries the most traffic in Europe and is the continent's most important inland waterway is the:
A. Rhone. B. Rhine. C. Danube. D. Elbe.
Across much of the United States, intense winter storms develop and travel ____________________, frequently dumping heavy precipitation as they go
Fill in the blank with correct word.