For the rock (X or Y) that is still completely solid, draw an arrow on the graph that would represent a process that would cause the rock to melt without changing the temperature of the rock
Describe below how changing pressure made the rock melt (did you increase pressure or decrease pressure?).
What will be an ideal response?
The appropriately drawn arrow will be vertical, because the question specifies that temperature is not changing. An arrow drawn vertically upward will cross into the crystals and liquid part of the diagram, indicating the onset of melting. Decreasing pressure, as might happen when the rock physically moves closer to the surface, causes melting (decompression melting).
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Which chemical family is composed almost entirely of man-made elements?
A. the lanthanides B. the halogens C. the actinides D. all of the above E. none of the above
Which of the above molecules would most likely have a strong, distinct smell?
A. a B. b C. c D. d E. a or d
Neritic sediments are mainly comprised of biogenous sediments due to the proximity to the continental
shelf. Indicate whether the statement is true or false.
The primary difference between renewable resources and nonrenewable resources is ____.
A. how easily each can be discovered B. the available amount of each resource C. the length of time it takes for each to be replenished D. how fast each is being consumed E. how quickly each can produce electricity