Fossil Fuels Flashcards
What are the three main fossil fuels?
Natural gas, crude oil, coal
How is coal formed?
Millions of years ago trees and plants died, they were buried under layers of mud, the heat and pressure caused them to form coal, therefore coal is often deep underground.
How is gas and oil formed?
Millions of years ago sea creatures died and fell to the sea bed, they were covered in sand and squashed, over millions of years the heat and pressure caused the fossils of the dead sea creatures to form crude oil and natural gas
What is the importance of fossil fuels to society?
Natural gas is used for cooking and heating
Crude oil is used for powering engines
Coal is used for generating electricity
(We use fossil fuels for basically everything)
What are some of the problems with burning fossil fuels?
Acid rain, greenhouse effect
What is an alternative energy sources to fossil fuels?
Solar energy
What are the advantages and disadvantages of having hydrogen as an alternative energy source?
Advantages - water is the only product, good for environment
Disadvantages - expensive, hard to access
