What complex system of long narrow ditches was used extensively in ww1

which empire had the greatest influence on the history and cultural development of russia?

answer: the risk-return relationship. generally, the higher the potential return of an investment, the higher the risk. there is no guarantee that you will actually get a higher return by accepting more risk. diversification enables you to reduce the risk of your portfolio without sacrificing potential returns.

explanation:

congress has authority over financial and budgetary matters, through the enumerated power to lay and collect taxes, duties, imposts and excises, to pay the debts and provide for the common defense and general welfare of the united states. the constitution also grants congress exclusively the power to appropriate funds.

mark brainlist it would alot

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