How Is Electricity Generated from Hydroelectric Dams or Ocean Tides

question 91

Multiple Choice

How is electricity generated from hydroelectric dams or ocean tides?

• A) water is pumped upward and then back down
• B) turbines are used to pump the water upward and generators produce the electricity
• C) water piles up behind a dam or tidal barrier and flows down because of gravity
• D) all of these

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Definitions:

Tax Rates

The percentages at which income, purchases, or other financial transactions are taxed by governments.

Saving

Disposable income not spent for consumer goods; equal to disposable income minus personal consumption expenditures.

Deregulation

The process of reducing or eliminating government power in a particular industry, usually to create more competition within the industry.

Transactional Motive

relates to the need to hold cash for the purpose of conducting day-to-day transactions.