A black hole is
A. the remains of a giant collapsed star.
B. an empty region of space with a huge gravitational field.
C. a small region that has the mass of many galaxies.
Answer: A
You might also like to view...
Which region of China has been more international in its orientation with close links to the Chinese diaspora in Southeast Asia and around the world?
A) southern coastal China B) Yunnan C) Sichuan D) Guangxi E) Manchuri
Many areas now have ________ plantations, in which trees are planted and harvested as crops (much as we do in agriculture), although on cycles of a few decades rather than just a single year
A) crop rotation B) harvestable crop C) sustained yield D) yield management E) partial extraction
What impact do the Canary and California currents both have on nearby climates?
A) They make the air more unstable. B) They increase the mixing ratio of the air. C) They cause lower temperatures. D) They increase the summertime temperatures.
The outer planets lie at great distances from the Sun, and are composed mainly of hydrogen and helium gas surrounding rocky cores.
Answer the following statement true (T) or false (F)