Renewability

Question 1

renewability

Answer 1

the abilty of a resource to be replaced by natural processes within a relatively short period of time

Question 2

non-renewable fuels

Answer 2

a fuel that is finite and will run out at some point becuase it is consumed faster than it is replenshed

Question 3

renewable fuels

Answer 3

a fuel that can be replenished at a rate faster than or equal to the rate at which it is consumed

Question 4

advantages of fossil fuels are

Answer 4

higher energy content, current systems of transport and electricity rely on fossil fuels, been reliable for large scale energy production,

Question 5

disadvantages of fossil fuels

Answer 5

takes millions of years to form (non-renewable, prices increase), burning pollutes atmospjhere with harmful gas (CO2 and SO2)

Question 6

SO2 effect

Answer 6

acid rain

Question 7

how can the disadvnatges of fossil fuels been lessened

Answer 7

both CO2 and SO2 can be captured upon burning to prevent being released into the atmosphere (but expensive)

Question 8

advantages of biofuels

Answer 8

carbon neutral, renewable, sustainable, reduced emissions and pollution, can reduce the amount of waste going into landfill, production can provide money for less developed countries as they have space to grow the crops required

Question 9

disadvantages of biofuels

Answer 9

high costs, land needed for food production, removes nutrients from ground/large amounts of herbicides and pesticides, lower energy content

Question 10

why are biofuels high cost

Answer 10

conversions of engines and machinery from petrol or diesel, harvesting and transportation of