How Is Coal Formed

question 70

Multiple Choice

How is coal formed?

• A) from hydrothermal deposits
• B) from igneous intrusions
• C) from 300 to 400 million year old plant remains
• D) from one million year old marine deposits
• E) from oil deposits that have solidified

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Definitions:

Inflation Rate

The pace at which prices for goods and services increase, leading to a decrease in purchasing power.

Nominal Rate of Interest

The advertised interest rate on a loan or investment, not accounting for inflation.

Purchasing Power

The amount of goods or services that one unit of currency can buy, often used to measure the impact of inflation.

Inflation Rate

The rate at which the general level of prices for goods and services is rising, thus eroding purchasing power.