To safely observe the odor of a chemical in a test tube, you should
a) slowly move the test tube under your nose and sniff.
b) pour some into a shallow dish and then inhale the odor.
c) waft the vapors from the tube toward your nose with your hand.
d) move the test tube under a fume hood and smell the air under the hood.

answer: capitalism and socialism are formal economies. the major differences between capitalism and socialism revolve around the role of the government and equality of economics. capitalism affords economic freedom, consumer choice, and economic growth.

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explanation:

roosevelt essentially took the opposite approach as hoover in taking on the great depression. herbert hoover thought that america and its economy could naturally recover from the depression in due course, so he adamantly restrained the federal government from intervening on behalf of the people affected. on the other hand, roosevelt dramatically increased employment by expanding the federal government and establishing agencies that would aid in relieving some of the country's worst problems.

during the early years of world war i, the germans used "the submarine" to a great advantage