The correct answer for 5 is Electrons
The Answer is B. The Motion of the butter molecules remains the same
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Actually, hydroelectric and coal-fired power plants produce electricity in a similar way. In both cases a power source is used to turn a propeller-like piece called a turbine, which then turns a metal shaft in an electric generator,which is the motor that produces electricity. A coal-fired power plant uses steam to turn the turbine blades; whereas a hydroelectric plant uses falling water to turn the turbine. The results are the same. :) <span>
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I believe the answer is D. <span> More sunlight is trapped by the atmosphere to cause global warming.
Even though Atmosphere usually contains Co2, the amount is really minor and heat from the Sunlight usually still able to reflected outside under noermal circumtances. But, due to usage of fossil fuels, the amount of CO2 in the atmosphere is significantly increased and making the sunlight unable to reflected outside and trapped within the Earth.</span>