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.

Based on this poster, what conclusion can be made about the u.s. government during world war i? it wanted to boycott trade with enemy nations. it wanted to provide low-cost loans to its allies. it was not able to fully finance the war effort through taxes. it believed the majority of its citizens did not support the war.