that present-day organisms have developed from different organisms in the distant past: Comparison of the physiology of fossils to present day organisms have showed relationships between the organisms The examination of the DNA structure of organisms has shown the development from past organisms. • Describe the conditions under which fossils form: Fossils are any remains of past life found in rocks of different ages Fossilisation is a rare event For fossilisation
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factors when it comes to nature causing climate changes; volcanic eruptions‚ ocean currents‚ earth orbital changes‚ and solar variations. There are three major factors when it comes to humans causing climate changes; transportation‚ deforestation‚ and fossil fuels to generate energy. Volcanic eruptions can cause the climate to change. When a volcano erupts tiny particles called aerosols shoot into the atmosphere. These tiny particles reflect solar energy into space and cool the earth. Also when a volcano
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is a great advantage. Wind turbines and solar panels can also be very aesthetically attractive‚ and people can comfortably live around them. Human health risk is also dramatically reduced when using wind and solar power as an alternative to burning fossil fuels. Wind and solar power can be the messiah of the earth. Solar power is the process for converting sunlight into heat and or electricity. In the case of solar panels‚ photovoltaics are used to convert light directly into electric current. Concentrated
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Mcguinty’s legacy is a green nightmare By Margret Wente‚ The globe and Mail‚ February 2‚ 2013 As our population grows and our society advances‚ there will be an increase in the demand of readily available energy. Fossil fuel based energy sources are costly‚ non-renewable and cause pollution‚ however wind energy has become the potential solution for all of our energy problems‚ or so we thought. McGuinty’s legacy is a green nightmare‚ by Margret Wente of the Globe and Mail explains that wind power
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photosynthesis of carbohydrates. Though living things emit carbon dioxide when they breathe‚ carbon dioxide is widely considered to be a pollutant when associated with cars‚ planes‚ power plants‚ and other human activities that involve the burning of fossil fuels such as gasoline and natural gas. In the past 150 years‚ such activities have pumped enough carbon dioxide into the atmosphere to raise its levels higher than they have been for hundreds of thousands of years. B. Causes Carbon dioxide is constantly
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Michael Pollan‚ The Omnivore’s Dilemma: The Secrets Behind What You Eat (Young Reader’s Edition) - Grade 7 Originally published in New York: Dial Books‚ 2009. Learning Objective: The goal of this two day exemplar is to give students the opportunity to use the reading and writing habits they’ve been practicing on a regular basis to unpack Pollan’s investigative journalism of industrial farms. By reading and rereading the passage closely combined with classroom discussion about it‚ students will
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money and strong leadership in guiding the country to a more renewable position on energy as its economy is almost entirely based on the production and sale of fossil fuels. In contrast‚ Sweden is in a very different situation economically and culturally. As a developed country‚ Sweden has converted most of its power from traditional fossil fuel sources that emit large amounts of greenhouse gasses to renewable energies such as solar and wind power. Sweden holds a position of leadership in the Climate
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Causes of Air Pollution In the world nowadays‚ there are many new inventions have invented. They are including cars‚ motorcycles‚ electronic gadgets and the machines that use the burning of fossil fuel. Instead of the benefits of these new inventions‚ there are many disadvantages‚ too. There are two main reasons that cause air pollution. One of the main causes of air pollution is manufacturing. This source of pollution spews particulate matter and chemicals into the atmosphere. The particulate
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up to keep up. Setting these facilities up cost a lot of money and (my prediction) not many countries will want or can afford to set these facilities up. (This point will be extended later). The other reason why it is not possible for it to replace fossil feuls is that renewable energy is not reliable. It relays heavily on the wheather condition‚ rain‚ sunshine‚ wind etc. These wheather condition is something that people cannot control‚ without sunshine‚ solar pannels cannot generate energy. Without
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Advantages and disadvantages of solar energy: The major benefit of solar is avoiding green house gases that fossil fuels produce. The first and foremost advantage of solar energy is that it does not emit any greenhouse gases. Solar energy is produced by conducting the sun’s radiation – a process void of any smoke‚ gas‚ or other chemical by-product. This is the main driving force behind all green energy technology‚ as nations attempt to meet climate change obligations in curbing emissions. Italy’s
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