All solar energy on Earth is a result of a reaction of hydrogen atoms combining to form helium. This reaction
A) increases the combined mass of the products.
B) represents a fusion reaction followed by nuclear fission.
C) is the same general process that occurs in nuclear plants.
D) is fusion, while nuclear plants rely on fission.
D
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The type of glacial debris that can fall into a crevasse is
A) supraglacial debris. B) englacial debris. C) subglacial debris. D) All of these are correct.
A TV screen looked at from a distance appears as a smooth continuous flow of images. Up close, however, we see this is an illusion. What really exists are a series of tiny dots (pixels). This is similar to a chemist's view of matter in that
A) the fundamental particles of matter can also be seen when looked at closely with a magnifying glass. B) on the submicroscopic level, chemists find that matter is made of extremely small particles, such as atoms and molecules. C) anything that a chemist can see, touch, hear, smell, or taste is an illusion. D) elements are made up of only three basic types of matter.
What meridian is opposite the Prime Meridian?
A) Tropic of Cancer B) 90° meridian C) 180° meridian D) 320° meridian E) Tropic of Capricorn
Seamounts and abyssal hills are ________ in origin
A) erosional B) metamorphic C) sedimentary D) volcanic E) seismic