The Earth's magnetic field periodically flips in polarity.
Indicate whether the statement is true or false.
Answer: True.
You might also like to view...
Which of these statements regarding biogeography is false?
A. Closely related species tend to be found close together, suggesting they evolved in one place and then spread. B. Island species are usually most closely related to species found on the closest mainland. C. Islands tend to be occupied by many land animals, but few or no flying ones. D. Despite their similarities, new world tropical forests and old world tropical forests are occupied by different sets of living organisms.
ANS: C
The life history of a star is based on its initial mass. Stars convert hydrogen atoms into larger carbon and oxygen atoms. Once the star begins to consume the carbon and oxygen it produced, it increases its energy output. The rate of this is determined by temperature and size. Information can be found in the section Stars and Seas
Of the following fluvial terms, which is most closely associated with stream capture?
A) Beheaded B) Braided C) Thalweg D) Meander E) Interfluve
Prior to the invention of agriculture, how did most people obtain their food?
What will be an ideal response?