Define luster
What will be an ideal response?
Luster is the quality of the light reflected from the surface of a mineral.
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Most of the solar energy that the Earth receives is concentrated at the equator. Which pair of terms is responsible for distributing this energy around the globe?
A. evaporation and condensation B. humidity and dryness C. turbulence and smoothness D. temporal and spatial
Poorly sorted, unconsolidated material that includes at least 20% gravel is called ____
a. rock b. mud c. talus d. debris
Which biome has, thus far, experienced the greatest conversion to farmland on a worldwide basis?
A. temperate forests B. tundra C. tropical grasslands D. boreal forests
States become world hegemons through imperial overstretch
Indicate whether this statement is true or false.