The _______________ comet, seen by many in 1997, came within Earth’s orbit around the sun (on the other side of the solar system) at about 320 million km away at its nearest point
Fill in the blank with correct word.
ANSWER: Hale-Bopp?
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Which of the following statements about natural gas is false?
a. About 100 million cubic feet of natural gas is flared each year in the U.S. b. Natural gas is mostly methane, a potent greenhouse gas. c. Natural gas is a feedstock for manufacturing fertilizers. d. Natural gas must be processed to remove impurities. e. The U.S. has greater natural gas reserves than Russia.
What is the lowest possible temperature on any of the three common temperature scales?
a. ?-273 degrees Fahrenheit. b. ?0 Kelvin. c. ?-100 degrees Celsius. d. ?-273 Kelvin. e. -100 degrees Fahrenheit.
A coastal depositional landform attached to the mainland at just one end point is called a ____
a. notch b. beach c. spit d. barrier island
The longer wavelengths of solar radiation above the band of visible light commonly penetrate the sea to depths greater than 10 meters.
Answer the following statement true (T) or false (F)