Which of the following is a scientific hypothesis?
A) The Moon is made of green cheese.
B) There are things we will never know about.
C) Matter is filled with undetectable particles.
D) There are parts of the universe that will never be found by man.
E) none of the above
A
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Europa, a moon of Jupiter, has a liquid ocean that remains in that state due to gravitational friction and to heat escaping from its interior
Indicate whether the statement is true or false
Air pressure at 5500 m (18,000 ft.) is ________ percent of that at sea level
A) 0 B) 10 C) 30 D) 50 E) 75
Despite the growth in commercial fishing and the exploitation of new fishing stocks, world fish harvests have remained nearly constant over the last decade.
Answer the following statement true (T) or false (F)
For the United States as a whole, thunderstorm activity is most intense in
A) September. B) July. C) April. D) March.