What are the three main types of volcanoes?
Ans: Cinder Cone, Shield, and Composite
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64,200,000,000 is equal to
a. 6.42 × 10^7. b. 6.42 × 10^?7. c. 6.42 × 10^10. d. 6.42 × 10^?10. e. 1.0 × 10^64.2.
A 4 kilogram block of ice is removed from a freezer where its temperature was maintained at –20 degrees Celsius. How much heat does the ice absorb as it is warmed to –10 degrees? (The specific heat capacity of ice is 2,000 joules per kilogram degree Celsius.)
When ice floats in water, a small part of it extends above the surface. Interestingly, the volume of ice that extends above the surface is equal to the volume of the
A) water the ice displaces. B) vast number of open spaces in the hexagonal ice crystals. C) both of these D) none of the above
What do we mean by a runaway greenhouse effect?
A) a greenhouse effect that keeps getting stronger until all of a planet's greenhouse gases are in its atmosphere B) a greenhouse effect that starts on a planet but later disappears as gases are lost to space C) a greenhouse effect that heats a planet so much that its surface rock melts D) a process that heats a planet's surface, but that doesn't require the presence of greenhouse gases