Which of the following does not result from increasing the temperature of a reaction?
A) A larger fraction of the collisions are effective collisions.
B) The concentrations of the reactants are increased.
C) There are more collisions.
D) None, all of the above are a result of increasing the temperature.
B
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Which statement describes turbidites?
A) They are graded layers of terrigenous sand mixed with finer pelagic sediments. B) They are propelled into position by gravity rather than water currents. C) They are composed of distinct layers that represent various turbidity current events. D) All of these choices are true about turbidites.
The depth below which there is no wave motion is
A) the same throughout the ocean. B) close to the surface near the equator. C) very deep near the poles. D) equal to one-half the wavelength.
Which of the following is an example of projects in line with Millennium Development Goals expected to help address poverty in undeveloped countries?
A) Banks in undeveloped countries make loans to open new restaurants, clothing stores, and shops. B) Loans are made to farmers to purchase basic farm equipment such as tractors, plows, fertilizers and wagons and to hire extra workers. C) Schools are encouraged to charge fees to help support the purchase of meals, new books and basic supplies. D) Elementary schools start serving meals to students from families with the lowest incomes.
Fossil evidence indicates that dinosaurs became extinct approximately ________ years ago.
A. 65 thousand B. 650 thousand C. 6,500,000 D. 65 million E. 650,000,000