Which of these statements about Earth's tides is correct?
a. The tides consist of two very long wavelength waves
b. There are typically six hours between successive high tides.
c. Most places on Earth have one high and one low tide per day.
d. They are caused by convection currents in the mantle.
e. They are caused by the gravitational attraction between Earth and Mars.
a
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The idea in cloud seeding is to first find clouds that have too low a ratio of ice crystals to droplets and then to add enough artificial ice nuclei so that the ratio of crystals to droplets is about ____.?
a. ?1:100 b. ?1:1,000 c. ?1:10,000 d. ?1:100,000 e. ?1:1,000,000
Which of the following is not a factor capable of influencing coastlines?
A. large currents B. plate tectonics C. waves generated by severe storms like hurricanes D. humans E. All of these choices are correct.
Why did the Christchurch earthquake (2011) in New Zealand cause much more damage than the larger Canterbury earthquake (2010)?
A. A large landslide from the Southern Alps mountain range buried the capital city. B. It was closer to a large city with buildings that had been damaged by the earlier earthquake. C. It was larger in magnitude and was deeper. D. All of these choices are correct.
relating to or denoting evolutionary convergence. (of thought) tending to follow well-established patterns.
What will be an ideal response?