Which of the following is essential in order for GPS to function?
A) Highly accurate clocks
B) A nearby base station on Earth's surface
C) A small, radar unit
D) A GIS unit in a receiver
E) Locations on land instead of the ocean
Answer: A
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A ball tossed vertically upward reaches its highest point and then falls back to its starting point. Along this up-and-down path, the acceleration of the ball is always
A. in the direction of motion. B. directed upward. C. directed downward. D. opposite its velocity.
The physical property of cleavage, the tendency of certain minerals to split along certain planar surfaces, is conspicuous in
A. mica. B. chalk. C. quartz. D. sapphire.
Metamorphism is a physical and chemical change that occurs in such a way that:a
disequilibrium is reached with the new physical and chemical environment. b. a dynamic equilibrium is reached. c. equilibrium with the new environment is disturbed. d. the rock reaches equilibrium with its new environment. e. the rock's chemistry and texture become increasingly unstable
Briefly explain why the groundwater table does not rise fastest in areas of low elevation. What will be an ideal response?