Class V

What is the one continent on Earth where coal is not found?
  1. Africa
  2. North America
  3. Australia
  4. Antarctica
What is one difference between a common organic fuel such as wood, and a fossil fuel?
  1. Wood burns more slowly
  2. Fossil fuels burn faster
  3. Fossil fuels make more efficient fuels
  4. Wood is in higher demand
Why do fossil fuels generate more power than wood for use in machines, for example?
  1. Fossil fuels have a higher concentration of carbon and hydrogen
  2. Fossil fuels are drier
  3. Fossil fuels are easier to light
  4. Fossil fuels are easier to transport
Oil and gas are mainly derived from which of the following sources?
  1. trees and larger plants
  2. phytoplanktonic material found in marine basins
  3. freshwater algae
  4. dead animals
Coal, a common fossil fuel, is formed from which of the following types of organic matter?
  1. freshwater algae
  2. freshwater algae
  3. marine organisms
  4. tree trunks, leaves, and freshwater plants
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