When work is done by a system without the addition of heat, the temperature of the system
A. increases.
B. decreases.
C. remains unchanged.
D. none of the above
Answer: B
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NGOs include environmental organizations.
Answer the following statement true (T) or false (F)
At convergent plate boundaries
A) the plate of higher density subducts into the mantle B) the plate of lower density subducts into the mantle C) new oceanic crust is created D) magnetic stripes are generated in oceanic rocks
Democracies differ from autocracies because
A) citizens vote for leaders, citizens participate, and there is a system of checks and balances. B) citizens vote for leaders, citizens can own land, citizens are innocent until proven guilty. C) education is not free, citizens participate, leaders have term limits. D) citizen participate, have the right to bear arms, and leaders have term limits. E) of a system of checks and balances, education is not free, and citizens can own land.
The Clean Air Act
A) is proposed legislation to address climate change. B) has not met its stated objectives. C) has resulted in the significant reduction in various atmospheric pollutants. D) is universally regarded as a failure and waste of money. E) was ratified by the U.S. Congress in 1987.