In 1620, Francis Bacon of England noted the parallelism of the Atlantic coastlines of South America and Africa and suggested that these continents had once been joined.
Answer the following statement true (T) or false (F)
True
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You wade into the ocean. Where can you stand so that you MIGHT be able to keep your head above water?
A) the abyssal plain B) the midocean ridge C) the continental shelf D) the coast
What is the main species of whale targeted by the Japanese and Norwegian whalers?
A) Humpback whales B) Fin whales C) Sei whales D) Minke whales
A diver who weighs 500 N steps off a diving board that is 10 m above the water. The diver hits the water with kinetic energy of
A) 10 J. B) 500 J. C) 510 J. D) 5000 J. E) more than 5000 J.
Seawalls are commonly used to stop shoreline retreat. Which of the following is a negative consequence of building a seawall?
A. loss of the beach at high tide B. unwanted deposition on the down-drift side C. creates a beach composed of very coarse particles D. are costly and must be periodically rebuilt E. unwanted deposition on the up-drift side