The main cause of world population growth in the past 300 years has been
A. Increasing immigration
B. Higher birthrates in developing countries
C. Rising fertility
D. Falling mortality due to longer life expectancy.
E. Increasing fecundity
Answer: D
You might also like to view...
The study of the climate and its variability is
A) weather science. B) climatology. C) meteorology. D) weatherology.
Limestone deposits are most likely to form in these environments:a
alluvial fans d. carbonate reefs b. playa lakes e. lagoons c. fluvial environments
Lava plateaus, such as the Columbia River Plateau, are formed from ________ magma which has a ________ viscosity
A) granitic; high B) granitic; low C) basaltic; high D) basaltic; low
Cross-beds indicate that current flow changed direction and the new direction flows across the old
direction at an angle. Indicate whether the statement is true or false.