Wave frequency is the number of waves passing a fixed point per second
a. True
b. False
True
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The distance between a seismological recording station and the earthquake source is determined from the ________
A) earthquake magnitude B) intensity of the earthquake C) length of the seismic record D) arrival times of P and S waves
What is the distinctive type of agriculture practiced in the dry lands of developing countries?
What will be an ideal response?
In which biogeochemical cycle is the namesake element deposited in rock and exists as a gas where it influences the greenhouse effect?
A. nitrogen cycle B. oxygen cycle C. carbon cycle D. water cycle E. rock cycle
Adding more carbon dioxide to the atmosphere causes the concentration of carbonates in the ocean to
A. stay the same because of a positive feedback mechanism. B. increase. C. stay the same because of a negative feedback mechanism. D. decrease.