Which would produce a more highly valued element, adding or removing a proton from the element gold?
What will be an ideal response?
Removing a proton: Gold then turns into more valued platinum. Adding a proton turns gold into mercury, which is less valuable.
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Which air mass is associated with the highest sea level pressure?
A) mP B) mT C) cP D) cT
A galaxy is: a. a thin cloud from which a sun and planets can form
b. a large diffuse cloud of gas. c. what forms in the center of a cloudlike sphere of gases that flattens and condenses. d. a huge rotating aggregation of stars, gas, and other debris held together by gravity.
When the ________ came to a close, dinosaurs became extinct.
A. Precambrian B. Holocene Epoch C. Paleozoic Era D. Mesozoic Era E. Cenozoic Era
Debris flows are different from mudflows in that they ____
A)move faster B)are confined to pre-existing channels C)contain more water D)are less damaging E)are composed of larger particles