energy resources Flashcards
defines the capacity of a system to do work.
Energy
is a natural resource that cannot be re-made or re-grown at a scale comparable to its consumption.
NONRENEWABLE RESOURCES
is energy which is taken from the sources that are available on the earth in limited quantity and will vanish fifty-sixty years from now.
NONRENEWABLE RESOURCES
Coal, petroleum, and natural gas are considered nonrenewable because they can not be replenished in a short period of time. These are called
fossil fuels
is a flammable black hard rock used as a solid fossil fuel. It is mainly made up of 65-95% carbon and also contains hydrogen, sulphur, oxygen and nitrogen. It is a sedimentary rock formed from peat, by the pressure of rocks laid down later on top.
Coal
energy is an affordable energy source because of the coal’s stable price compared to other fuel sources is easy to burn produces high energy upon combustion energy is inexpensive is abundant energy is a reliable energy source
Coal
When is burnt it produces carbon dioxide that causes global warming.
Since contains impurities like S and N, it produces toxic gases during burning which causes acid rain and air pollution.
Traces of mercury and radioactive compounds are also released when is burned.
Severe human health threat.(lung disease)
Coal
It is a dark coloured, viscous
and foul smelling crude oil.
The means rock oil. It is normally found under the crust of earth trapped in rocks. The crude oil is a complex mixture of several solid liquid gaseous hydrocarbons mixed with water, salt and earth particles. It is a natural product obtained from oil wells.
petroleum
- It can be extracted easily.Technologies that are used for extracting oil beneath the planet’s surface are well developed.
- It has high density. The average 1 kilogram of burnt oil can generate up to 10,000 kilocalories.
petroleum
- It can easily be transported. Because is in liquid form, it is just easy to transport.
- It can power up almost all types of vehicles. Whether they are diesel or gasoline vehicles, they can be run by oil.
petroleum
1. Its resources are limited. High demands for energy by the modern society have stressed the conventional sources of oil reserves. 2. It contributes to environmental pollution.
petroleum
- Its transport can cause oil spills.
- It produces hazardous substances. Production of petroleum, especially refining, produces harmful and toxic materials, including plastic.
petroleum
occurs deep beneath the earth’s surface. consists mainly of methane, a compound with one carbon atom and four hydrogen atoms. Natural gas also contains small amounts of hydrocarbon liquid gas and nonhydrocarbon gases. We use as a fuel and to make materials and chemicals.
Natural gas
In some places, the natural gas moved into large cracks and spaces between layers of overlying rock. In other places, natural gas occurs in the tiny pores (spaces) within some formations of shale, sandstone, and other types of sedimentary rock where it is referred to as shale gas or tight gas. Natural gas also occurs in coal deposits and is called coal bed methane.
Natural gas
It’s environmentally friendly.
tops other fossil
fuel when it comes to clean
burning.
occurs underneath the surfaces of the earth, which means, when storms come, the delivery will not be impacted in any way. Other energy source like electricity can be interrupted for days in case of severe storms.
Natural gas
