Fossils Fossils are the remains of ancient organisms‚ usually animals and plants but there are also minute bacteria and occasionally fungi. They are preserved by natural processes of burial. Most are entombed in sediment i.e. mud‚ silt or sand which with time transforms into a sedimentary rock such as sandstone. Rarely‚ fossils are enclosed in ash erupted from volcanoes‚ resin that oozes from trees and hardens into amber‚ or natural tar seeping from the ground. Normally only the resistant hard
Premium Evolution Fossil DNA
Can alternative energy effectively replace with fossil fuels? ‘’Fossil fuels are coal‚ natural gas and petroleum.’’ (http://en.wikipedia.org/wiki/Fossil_fuel) They are all organic residues. People use this for their energy‚ fuel and heating requirements. But fossil fuels polluting environment so much and people started to think about using alternative energy for their environment’s healthy. ‘’These alternative energy resources are windy power‚ solar energy and geothermal energy.‘’ (http://en
Free Alternative energy Fossil fuel Energy development
Coal is a solid fuel formed over millions of years by the decay of land vegetation. Over time‚ successive layers become buried‚ compacted and heated‚ a process through which the vegetation is turned into coal. This means that it’s not possible to keep it going since we can’t wait around for a few million years. Coal was the first fossil fuel to be exploited on a large scale during the 19th century with the beginning of the Industrial Revolution. Production of these fossil fuels is expected to rise
Premium Fossil fuel Natural gas Energy development
Conserve and Preserve With today’s growing population‚ resource consumption is becoming a huge concern. It is important that humans realize what is best for both our present and future generation‚ and what is best for our planet. We must preserve certain areas from being destroyed to keep their natural beauty. We should also conserve resources‚ so they can continue to flourish‚ but also so we can continue to live our lives without depleting these resources. Every individual unit of the environment
Premium Life Garrett Hardin Overpopulation
everyone who drives should drive sensibly. Things such as speeding‚ braking‚ and rapid acceleration wastes gasoline. Each year‚ electricity generated by fossil fuels for a single home puts more CO2 (carbon dioxide) into the air than the average cars. (Source F) There are many ways to save energy‚ electricity‚ and your money. “Typically‚ if fossil fuel prices rise‚ consumers quickly use less and new supplies of ‘clean energy’ magically materialize.” (Source D) For this to actually happen in reality
Premium Carbon dioxide Fossil fuel
Alternative fuels‚ also known as non- renewable sources‚ are substances that can be used as fuels‚ other than conventional fuels. Conventional fuels include: fossil fuels (petroleum (oil)‚ coal‚ propane‚ and natural gas)‚ and nuclear materials such as uranium. [ 1] The fuels we use now are finite‚ meaning they have a limited life expectancy. This along with the toxic waste they produce has made environmentalist and government officials alike take precautionary steps so that we do not
Premium Petroleum Coal Hydroelectricity
What are fossils? Fossils are the remains or marks of plants and animals that lived a very long time ago. They are usually found in rocks and stones. Fossils are important because they tell us a story about things that lived on the earth before us. What Things Become Fossils? Animals and plants become fossils. So do nests‚ eggs‚ footprints and even animal droppings! How are Fossils Made? Fossils are made from the hard parts of plants and animals‚ such as:-bark‚ seed cases‚ bones and
Premium Fossil Sedimentary rock Dinosaur
Fossils A fossil is the prehistoric remains of a plant or an animal. Fossils are usually are kept at their best when they are buried under many layers of sand and mud. Under the great pressure from the ground‚ the sand and the mud become sedimentary rock. The minerals combine forming a mould of the plant or animal under the ground. A fossil can be a trace fossil or a body fossil. A body fossil is what actual organic material from a creature or plant (like a bone). Trace fossils are signs of
Premium Fossil Sedimentary rock Geology
Biofuels Biofuels are Fuels made from Biomass Biofuels are made from plants‚animals‚ or their waste products. Here I have listed three examples of biofuels beneath. 1 Micro-organisms decompose waste materials to produce biogas. 2 Biogas is usually about 70% methane and somewhere between 20 and 30 % carbon dioxide 3 the way we use it to generate energy is to burn it to heat up water which will then turn a turbine to produce electricity. It is also heard of to heat the water to steam which
Free Fossil fuel Ethanol fuel Petroleum
Whenever you save energy‚ you not only save money‚ you also reduce the demand for such fossil fuels as coal‚ oil‚ and natural gas. Less burning of fossil fuels also means lower emissions of carbon dioxide (CO2)‚ the primary contributor to global warming‚ and other pollutants. You do not have to do without to achieve these savings. There is now an energy efficient alternative for almost every kind of appliance or light fixture. That means that consumers have a real choice and the power to change
Premium Carbon dioxide Incandescent light bulb Fluorescent lamp