Our local group is composed of how many galaxies?
A. less than 100
B. less than 400
C. 1,526
D. less than 1,000
Answer: A
You might also like to view...
In the United States, Spanish-speakers make up approximately what portion of non-English-speakers?
A) 20 percent B) 30 percent C) 50 percent D) 60 percent
Recycling programs, especially for aluminum cans, have become very successful because it requires only ________ of the energy needed to make a can from bauxite ore
A) 10% B) 5% C) 55% D) 40% E) 20%
Doppler radar is of limited use in creating hurricane storm warnings because:
A) Doppler radar cannot penetrate into the center of a mature hurricane. B) Doppler radars are not commonly used in coastal areas. C) Doppler radar is not very accurate at measuring rainfall intensity associated with the hurricane. D) hurricanes must be within 320 km of the coast for Doppler radar to "see" them.
What happens when an oceanic plate collides with a continental plate?
A. The continental plate is subducted. B. The oldest plate is subducted. C. The oceanic plate is subducted.