If a country had a population of 1 million in the year 1980 and the population increased at a constant rate of natural increase of 7%, what would be the doubling time? (remember this is exponential growth)
A) about 3 years
B) about 7 years
C) about 10 years
D) about 15 years
E) about 20 years
Answer: C
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The Atlantic continental margin is presently a/an __________ margin. Fill in the blank(s) with the appropriate word(s)
You measure the magnetization in a 100 million-year-old rock from North America. The magnetic minerals you measure have an inclination that is much shallower (lower inclination) than North America has today. From this measurement you conclude:
a. that North America has moved closer to the equator in the last 100 million years. b. that North America has moved farther from the equator in the last 100 million years. c. that North America was uplifted 100 million years ago. d. that North America has moved both west and south in the last 100 million years. e. that plate tectonics is wrong and that continents don't move.
Sir Francis Drake (1540-1596)
What will be an ideal response?
Lowest natural temperature recorded on Earth (where and value)?
Using a physical geography text, an atlas, an encyclopedia, or the Internet, answer the following. Be sure to list temperature record, date, and place.