Immigrants to the United States
A) are typically under the age of 15.
B) are typically over the age to 65.
C) are males between the ages of 16 and 20.
D) are females between the ages of 16 and 20.
E) are typically between the ages of 20 and 39.
Answer: E
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Most continents contain large central areas in which very ancient rocks are exposed. These areas are called ____
a. Precambrian shields b. platforms c. continental slopes d. orogenic belts e. continental shelves
When does Earth's perihelion, the point of orbit when it is closest to the Sun, occur?
A) during the Northern Hemisphere's winter B) during the Northern Hemisphere's autumn C) during the Northern Hemisphere's summer D) during the Northern Hemisphere's spring E) due to Earth's circular orbit, year-round
What is a main hazard of this type of volcano?
A) Burning, building collapse, and suffocation from an eruption column and pyroclastic flows
B) Volcanic mudflows and landslides
C) Hot fragments thrown a short distance from the volcano
D) Destruction by moderately fluid lava flows that can flow far from the volcano
A significant change in land-plant communities occurred with the evolution of angiosperms in the Cretaceous
a. True b. False