The warm period on Earth about 7,000 years ago is known as the ____________________
Fill in the blank(s) with correct word
Altithermal
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Which of the following statements describes the air temperature on a cold morning when you see your breath?
A. It can be above or below freezing. B. It must be above freezing. C. It must be below freezing. D. It must be equal to the relative humidity.
What characteristic of continental crust accounts for more than half of Earth's solid surface being below sea level?
a. Continental crust is denser than oceanic crust. b. Continental crust is thinner than oceanic crust. c. Continental crust is less dense than oceanic crust. d. Continental crust is both less dense and thinner than oceanic crust. e. Continental crust is the same density and thickness as oceanic crust.
The two-stage ditch design was created in order to
A) drain wetlands and provide more agricultural land. B) combine agricultural areas with aquaculture of fish. C) allow ditches to drain off excess water from croplands but also avoid erosion during heavy rains. D) bring water from distant rivers and lakes to drylands in the process of desertification.
Which of the following correctly describes satellites and telomeres?
A) Both can occur at the ends or in the middle of chromosomes. B) Both can occur only at the ends of chromosomes. C) Satellites occur only at the ends of chromosomes, but telomeres can be found at the ends or in the middle of chromosomes. D) Telomeres occur only at the ends of chromosomes, but satellites can be found at the ends or in the middle of chromosomes.