Fossil fuels and biofuels

Question 1

When were the fossil fuels created?

Answer 1

In the carboniferous period ( 360 - 280 million years ago)

Question 2

What does renewable mean?

Answer 2

Energy from natural sources that is always being replenished . Does not run out .

Question 3

What does non-renewable mean?

Answer 3

Energy from natural sources that is used up faster than it is replenished . Will run out eventually .

Question 4

Give 3 examples of fossil fuels .

Answer 4

Coal , Oil and Natural gas

Question 5

Why do fossil fuels have densities?

Answer 5

Fossil fuels carry a lot of energy in a small space so its easier to carry around .

Question 6

What are the fossil fuels most important factors and why?

Answer 6

Organic material - Plants and animals ( for example the ocean ) die and get piled at the bottom of the ocean and other materials pile over them

Heat - The earths core starts to heat this up

Pressure - More things pile and the pressure makes them stick tighter and tighter together

Time - Fossil fuels take millions of years to form

Question 7

What are the disadvantages of fossil fuels?

Answer 7

Pollution - When we burn fossil fuels they release gasses that make it hard for us to breath in the air , which could also make the earth warm and cause global warming

Harm to animals and nature - Getting fossil fuel from the ground can hurt and animals and nature ( imagine getting oil from the ocean and it spilling into the ocean)

Limited supply - We use it up way too fast and they take millions of years to make which mean that we are running out of them

Climate change - The gasses can change the climate which can also hurt the animals.

Question 8

What do fossil fuels emit?

Answer 8

Carbon dioxide