Which principle(s) would you use to determine the relative ages of an intrusive igneous rock, such as a dike, and the rock adjacent to the dike? Why?
What will be an ideal response?
Principle of cross-cutting relationships and possibly the principle of inclusions
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A party balloon of high voltage likely has low
A. charge. B. electrical resistance. C. energy. D. all of the above
The surface pressures at the bases of warm and cold columns of air are equal. Which of the following describes the air pressure in the warm column of air compared to the air pressure in the cold column?
A. It increases with increasing height more slowly than in the cold column. B. It increases with increasing height more rapidly than in the cold column. C. It decreases with increasing height more rapidly than in the cold column. D. It decreases with increasing height more slowly than in the cold column.
Gravity always acts downward, which tells us that acceleration due to gravity
A. acts upward. B. acts downward. C. sometime acts upward as well as downward. D. none of the above
Roughly 95% of Earth's crust is made up of silicates
Indicate whether the statement is true or false