Extrusive igeneous cooled and hardened ________ the Earth's surface, resulting in ________ grained rocks
A) beneath; finer
B) beneath; coarser
C) at; finer
D) at; coarser
C
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In recent decades, the majority of immigrants coming to Australia have come from
A) Asia B) islands in Oceania C) the United States D) troubled areas of Sub-Saharan Africa E) New Zealand
Which of the following must be present in a carboxylic acid?
A) a carbonyl group and a hydroxyl group bonded to different carbon atoms B) a carbonyl group and a hydroxyl group bonded to the same carbon atom C) two hydroxyl groups on the same carbon atom D) two carbonyl groups on the same carbon atom
Mutualistic relationships between bacteria and certain root nodules play an important role in the global cycling of ________
A) nitrogen B) rock C) carbon D) phosphorus E) water
What is the role of the ozone layer?
A. It reflects heat to the surface. B. It creates a warm blanket around the Earth. C. It protects the surface from ultraviolet radiation from the Sun. D. It blocks all electromagnetic radiation from space.