Renewable energy relies on the weather. Is it a PRO or a CON?
Con
200
Name at least three renewable energy sources.
wind energy, hydropower, solar energy, biomass, wood pellets
200
What is the most dangerous nonrenewable energy?
Nuclear power
200
Why will nonrenewable energy become more expensive?
it is limited
300
Name three facts about solar energy
- solar cells convert sunlight into electricity
- solar water heating uses the energy to generate heat
- solar furnaces produces very high temperatures
- reliability depends on sunlight
- very expensive to build solar power plants
300
Name four facts about nuclear power.
- is generated using uranium
- electricity is the most common utility
- nuclear power plants use nuclear fission to produce electricity
- produces a huge amount of energy from small amounts of fuels
- waste is very dangerous
- nuclear accidents are a major disaster
300
Name four cons of renewable energy sources.
- sustainable
- never run out
- environmental benefits
- cost less
- safer
- do not produce harmful waste
400
What is biomass made of?
plant material and animal waste
400
What is the cheapest nonrenewable energy sources?
coal energy
400
How many percent of the world´s electric power provide nonrenewable fossil fuels?
66%
500
How many percent of the energy we use is produced by wind energy?
6.5 %
500
What are fossil fuels?
it´s formed in the earth from dead plants or animals
500
Name six CONs of nonrenewable energy sources.
- run out some day
- fossil fuels are still needed to provide most of the energy that is equivalent
- health risks
- limited
- contributing to the warming of the plante
- causes pollution