Which planets contain mostly hydrogen atmospheres?
A) Mercury, Venus, and Mars
B) Jupiter, Saturn, and Uranus
C) Mars, Jupiter, and Saturn
D) Uranus, Neptune, and Pluto
Answer: B
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As shown in Figure 8.12, what has happened to the number of species on Earth as the human population has grown?
A. decreased B. matched it exactly C. increased slightly D. increased greatly
Wild species' instrumental value includes their use as
a. food crops b. fuelwood c. sources of medicine d. lumber e. food crops, lumber, fuelwood and sources of medicine
What does a terminal moraine represent?
A. the end of an ice sheet that is floating in the sea B. the sharp ends of a jagged ridge formed by glaciers C. the end of a polished and scratched segment of bedrock D. the final time that two glaciers come together E. a pile of sediment deposited at the end of the glacier
In general, as per capita GDP (Global Domestic Product) rises both ________ and ________ increase.
A. Percentage of safe drinking water; rate of infectious diseases B. Percentage of safe drinking water; adult literacy C. Total Fertility Rate; percentage of safe drinking water D. Infant mortality; adult literacy E. Infant mortality; life expectancy