Need asap last question cant get wrong
a local community needs to provide more electricity for its growing population. currently, the community's electricity needs are met by coal-burning power plants several kilometers away. citizens are concerned that burning more coal will produce too much air pollution.

which of the following could be used as an alternative energy resource to minimize air pollution in this community?
a.
hydroelectric energy
b.
solar energy
c.
wind energy
d.
all of these

The melting point of sulfur is 115 °c and its boiling point is 445 °c. what state would sulfur be in at 200 °c?

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.

Amedication is given at a dosage of 3.000 mg of medication per kg of body weight. if 0.1500 g of medication is given, then what was the patient's weight in pounds (lbs)? there are 453.59g in 1 lb.