In general, between 1990 and 2010, the fuel efficiency of vehicles sold in the United States has
A) increased dramatically, nearly doubling in this 20-year period.
B) increased by about 50%.
C) showed only a slight increase.
D) decreased by about 30% due to additional pollution control devices on exhaust systems.
C
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Even if a country has banned the use of DDT, the pesticide can still enter the country as it can be carried by vectors such as wind.
Answer the following statement true (T) or false (F)
Nine old, 12-ft2 windows with a U-value of U = 1.2 ./0 1·3/4·°F were replaced with new windows having U = 0.3 ./0 1·3/4·°F . Calculate the energy savings on a day during a five-hour period when Tin = 68oF and Toutside = 10oF.
What will be an ideal response?
The determination that Earth was created on Oct. 22, 4004 B.C. was made by
a. Werner. d. Ussher. b. Kelvin. e. Steno. c. Buffon.
The only aspect of science is the gathering of information and the studying of that information
Indicate whether the statement is true or false