Explain how differences in molecular bonds in minerals can result in cleavage versus fracture
What will be an ideal response?
Answer: The molecular bonds in a mineral that has good cleavage will be strong in one direction. However, they will be weaker in another direction, allowing for parting along a plane of weakness with the right application of pressure. A mineral that generally fractures, however, tends to have mineral bonds that are equally strong in all directions.
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The propagation of seismic waves through Earth's interior provides evidence of internal layering. The first boundary discovered was the boundary between the
A) upper and lower mantle. B) inner and outer core. C) outer core and the mantle. D) mantle and the crust.
The biotic potential of a population
A. is its capacity for ideal growth under ideal conditions. B. is its current rate of growth of a population. C. is an expression of how many offspring survive to reproduce. D. can be determined only by studying an age structure diagram. E. is the future rate of growth of a population.
When temperatures are below freezing, the temperature at which air becomes saturated leading to the formation of frost is the
A) dew point. B) frost point. C) absolute humidity. D) relative humidity.
The earth is continuously receiving heat from the atmosphere as well as from the Sun
Indicate whether the statement is true or false