Which habitat is the most impacted by pollutants?
a. estuaries
b. fish nurseries
c. tidal sediments
d. coral reefs
e. open ocean
a
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What amount of oil from U.S. production comes from the Gulf of Mexico?
A)10% B)30% C)50% D)65% E)100%
A small piece of chalk made of calcium carbonate can be useful for alleviating acid indigestion because calcium carbonate is
A. able to turn the acid into a gas which can relieve the buildup of excess acid. B. able to add an extra lining to the stomach to protect it from the excess acid. C. able to absorb excess acid and carry it out of the system. D. a base that reacts to neutralize any excess acids.
Which marine reptiles make long migrations to lay eggs on the very same beach they hatched from?
a. Sea turtles b. Crocodiles c. Lizards d. Sea snakes e. Iguanas
Judge the following sentence according to the criteria given below: Deserts are arid regions with little precipitation because high temperatures lead to the evaporation of water
A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct but the reason is incorrect. D) The assertion is incorrect but the reason is correct. E) Both the assertion and the reason are incorrect.