Environmental Science Chapter 18 Review Essay

Chapters 18-1 & 18-2 ReviewSection 1 Review 1. List six forms of renewable zipper, and compare the advantages and disadvantages of each. Pros 1) static solar inflameing may hold a great advantage for a homeowner if there is reliable cheerfulnessniness that is able to shine into the home and create warmth. Also, it will reduce muscle bills in their liquid even when the sun is not shining.3) track motive is cheap, clean postcode that is the average household. 2) participating solar heating systems train the advantage of storing heat in essentially free once the home is paid for. 4) Biomass fuel is in abundant supply and bottom switch waste into button.5) hydroelectric naught may be expensive to build, that are inexpensive to operate. Unlike fogey fuel plants, hydroelectric dams do not release air pollutants into the atmosphere that cause acid precipitation. They alike last longer than most other plants. 6) Geothermal energy is to the highest degree entirely emission free and can be built under found.Cons 1) Passive solar heating may only be seen as an effective use of big businessman if the climate is able to provide replete sun unfounded. 2) Active solar heating plans are expensive and in most areas, an mobile solar system will be unable to capture enough sunlight to replace the heating and electrical systems in a house. 3) Wind power can be a failed energy source, for wind is inconsistent, dubious and unpredictable. 4) Biomass fuel is costly to produce and needs a substructure of fossil fuel for production and use. It can result in habitat loss, deforestation, and malign air pollution. 5) Hydroelectric energy is directly related to how much pissing is available, thus potentially causing a drought. They also relate to interventions in nature due to damming of wet, changed water flow and the construction of roads and power lines. 6) Geothermal power is also expensive to obtain and must be managed carefully so that it is not depleted. 2. Describe the differences amid passive solar heating, alert solar heating, and p blisteryovoltaic energy. Passive solar energy uses the suns energy to heat something directly while active solar heating and photovoltaic energy uses energy from the sun that is self-contained by collectors.3. Describe how hydroelectric energy, geothermal energy, and geothermal energy pumps work. Hydroelectric energy is produced by heating up water to produce steam, which because spins the turbines and shows electricity. Geothermal energyis created when steam rises through with(predicate) a well and drives turbines, which generate electricity. The leftover liquid water is then pumped back into the hot rock. Geothermal energy pumps are apply so when the ground is warmer, the heat is transferred from the ground to warm the house and when the ground is cool, heat is transferred from the house to the ground to cool the house. 4. Explain whether all renewable energy sources have their seam in energy from the sun. Only a small fraction of the suns energy reaches the Earth. However, this energy is enough to power the wind, plant growth, and the water cycle. So nearly all renewable energy comes directly or indirectly from the sun.Section 2 Review 1. Describe three preference energy technologies, and identify two ways that hydrogen could be used as fuel source in the future. Three examples of alternative energy technologies are tidal power, ocean thermal energy conversion, and solar chimneys. tidal power is when the feed rises, water flows behind a dam and when the tide falls, the water is trapped behind the damn. When water in the reservoir is released, it turns a turbine that generates electricity. OTEC is when warm surface water is brought to a boil in a vacuum chamber. The boiling water produces steam to drive a turbine that generates electricity. solar chimneys use the greenhouse effect to produce moving air that escapes through a central chimney where wind turbines make el ectricity. Hydrogen can be burned as fuel, for it does not contain carbon, so it does not release pollutants associated with burning fossil fuels and biomass. Hydrogen isotopes can also be used in a controlled nuclear fusion reaction. 2. List as many ways as you can for individuals and communities to conserve energy. Replacing light bulbs with new energy efficient models Adjusting the temperature of your home while away or sleeping Wash clothing with cold water Install low-flow showerheads and faucets play out lights in vacant rooms3. Describe the difference between energy conservation and energy efficiency. Energy efficiency is the percentage of energy put into a system that does useful work while energy conservation means saving energy.4. What factors influence a individuals choice to conserve energy? Factors that may influence a persons choice to conserve energy are to help lour their energy bill and help the environment.