Which of the following processes has added heat to Earth's interior during or after its formation?
A. radioactive decay
B. formation and sinking of masses of iron and nickel
C. collision of asteroids and meteoroids with Earth
D. All of these choices are correct.
Answer: D
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Volcanoes present a danger to aircraft ____
a. ?that can be easily avoided since the danger builds slowly b. ?due to the effect on the humans aboard the aircraft c. ?due to the buildup of ash on propellers d. ?due to the effect of the ash on jet engines e. ?due to the corrosion of wing surfaces by volcanic gasses
Hawaii is the result of a(n) ____
a. island arc b. convergent plate margin c. divergent plate margin d. hot spot
What types of neighborhoods can be used in a neighborhood operation?
What will be an ideal response?
Satellite images taken of clouds at night use
a. ?reflected visible radiation. b. ?reflected infrared radiation. c. ?emitted infrared radiation. d. ?microwave radiation. e. ?emitted ultraviolet radiation.