Which is a major drawback to the use of hydrogen power? A. Hydrogen power creates toxic waste that must be stored forever. B. The use of fossil fuels is required to create pure hydrogen. C. Hydrogen may run out in the next 100 years. D. Burning hydrogen releases greenhouse gases.

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.

the  wilmot proviso  was designed to eliminate  slavery  within the  landacquired as a result of the mexican war (1846-48). fearing the addition of a pro-slave territory, pennsylvania congressman david  wilmot proposedhis amendment to the bill.

this is a good question! i'll do some research and come back when i have the answer!