The distance to the epicenter is determined by the time delay between the arrival of P and S waves
a. True
b. False
ANSWER: True
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A piece of gravel is resting on a slope. Which of the following best describes how the gravitational force pulling the gravel downward will vary with the inclination of the slope?
A) Gravitational force is not affected by the slope angle. B) Gravitational force will increase as the slope angle decreases. C) Gravitational force will only change with the addition of water. D) Gravitational force will decrease as the slope angle decreases.
All of the following are true about subsidies for food production except
a. Subsidies in developed countries average $571,000 per minute. b. Milk production quadrupled in New Zealand after farm subsidies were ended. c. Food prices in developed countries are kept artificially low. d. Developing countries also receive large amounts of subsidies for growing food. e. Some analysts recommend replacing traditional subsidies with subsidies that promote sustainable agricultural practices.
The Southern Hemisphere has warmer summers and colder winters than the Northern Hemisphere
Indicate whether the statement is true or false
What element is used to link nucleic acids in all organisms?
A) Carbon B) Nitrogen C) Silicon D) Phosphorus