The idea that complex animal life similar to that on Earth is exceedingly rare in our universe is known as the
A. theory of evolution.
B. continental drift hypothesis.
C. theory of the ice age.
D. rare Earth hypothesis.
Answer: D
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Suppose it is warm and raining, and a cold front is moving toward your location. Directly behind
the cold front it is cold and snowing. Still further behind the front the weather is cold and clearing. If the front is scheduled to pass your area in 6 hours, a persistence forecast for your area for 12 hours from now would be: a. cold and snowing. b. cold and clearing. c. cold and cloudy. d. warm and raining. e. not enough information on which to base a forecast.
What are the major sources of air pollutants in the United States?
A) agriculture and chemical processing B) evaporation (especially in the Southwest) and desertification C) hydropower and biomass consumption D) deforestation and topsoil depletion E) industry and transportation
How would an earthquake epicenter be located, using three seismograms, a map, and a protractor? What will be an ideal response?
Describe the formation processes of four types of fog
What will be an ideal response?