6119110
Description
Flashcards by fabiana monge, updated more than 1 year ago
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Created by fabiana monge
almost 8 years ago
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| Question | Answer |
| What are fossil fuels? | they are substances formed from the remains of once living things |
| What are fossil fuels made of? | They are made of chemical compunds that contains carbon and hydrogen atoms (hydrocarbon) |
| What are the 3 main fossil fuels? | Coal, Oil, and Natural Gas |
| what are some characteristics of coal | ° its burned to produce heat ° need to be removed from the ground before it produce energy ° esay to transport ° mining coal is dangerous ° burning coal causes more pollution |
| what are some characteristics of oil | ° is thick, black, and liquid ° formed by organisms that lived in oceans ° its also called petroleum ° finding oil is difficult ° have to go through a process named refining to be used |
| what are some characteristics of Natural Gas | ° formed by some of the same organisms as oil ° its less dense than oil ° it has large amount of energy ° its less pollutant than coal and oil ° its highly flammable and it has no odor |
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