2 Discuss the various types of floods with particular reference to magnitude‚ climate and environmental impacts. (25) ANSWER EITHER QUESTION 3 OR 4 (25 marks) 3 Explain‚ with the aid of a diagram‚ the vertical layered structure of the atmosphere. (25) 4 Discuss the various causes and consequences of global warming. (25) SECTION B : Biospheric and Lithospheric Processes (50 MARKS) ANSWER QUESTION 5 AND ANY TWO FROM OUESTIONS 6 TO 9 (25 Marks) 5 Describe and explain
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others. These all have unique solutions which are now being promoted by environmentalists. Certain laws and treaties are aimed at reducing the emission of pollutants that result in global warming. In 1988‚ the International Conference on the Changing Atmosphere drew scientists and decision makers from 48 countries. Some policies could successfully reduce global warming. Raising fossil fuel prices‚ taxing emissions‚ and encouraging people to take environmentally friendly action through such activities as
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also to our atmosphere. We have different kinds or types of pollution; we have pollution in land‚ in water and in air. We all know that these came from pollutants which were produced by human. Some of these are wood burning to produce charcoal‚ vehicular activities‚ improper disposal of waste‚ forest fires or wild fires‚ and other activities producing unnecessary gases. We all know that these are harmful for us‚ but what would be the effect of these gases as it goes up in the atmosphere? Would it be
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climate include the sun‚ volcanic eruptions‚ and Earth’s orbit. But how exactly does something like a volcanic eruption effect climate? This is because “Explosive volcanic eruptions modify the composition of the atmosphere by injecting small particles called aerosols into the atmosphere layer.” These released aerosols block the solar radiation that would have reached Earth’s surface and consequently‚ it has cooling effect on Earth’s surface. The more talked about topic in chapter one however is the
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The solar system consists of the Sun and 9 planets revolving around it in different orbits. The statistics of the sun and the planets are given below : SUN Age : About 5 Billion years Distance : 149.8 Million Kms Diameter : 1‚38‚400 Kms. Photosphere temperature : 5‚770 K Core temperature : 150‚000‚000 K Absolute visual magnitude : 4.75 Rotation (as seen from the earth at the equator) : 25.38 days Rotation (near the poles) : 33 days The sun consists of 71% of Hydrogen‚ 26.5% Helium and
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lives‚ we are changing the Earth’s climate. We are making the planet grow warmer. We are making the rise in temperature by burning the ’fossil fuels’ like coal‚ oil and natural gas. We are putting greenhouse gases such as carbon dioxide‚ into the atmosphere. Sulphur dioxide is another harmful gas that comes from power stations and vehicles. It is very acidic‚ which means it eats
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threats. The problem lies in the disruption of the balance between how much carbon dioxide plants intake‚ and what our population produces. If this natural filtering process is unbalanced‚ the atmosphere will receive too much carbon dioxide and other greenhouse gases. Once these gases form in the atmosphere‚ they act as barriers trapping in heat and warming the earth. This process is not new. In fact‚ without the greenhouse effect‚ the average surface temperature of the earth would be about 59 Fahrenheit
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Global warming Global warming has been a hot topic in recent decades. According to the Climate Literacy‚ global warming refers to is a natural phenomenon whereby heat-trapping gases in the atmosphere‚ primarily water vapor keep the Earth’s surface warm. Human activities‚ primarily burning fossil fuels and changing land cover patterns‚ are increasing the concentrations of some of these gases‚ amplifying the natural greenhouse effect.. I had learned some basic concepts about global warming when
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perhaps the bleakest of O. Henry’s best-known stories. Although the basic ironic plot can be summarized in a sentence—a young man commits suicide in the same room where a young woman for whom he has vainly searched killed herself—it is the musty atmosphere of the room and the suggestion that every place bears the traces of the lives that have inhabited it that makes the story so compelling. It is a story of transience‚ of lives that move through a bleak‚ indifferent world‚ leaving only bits of themselves
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An Unmistakable Presence of Peace Places of serenity hold captive the fondest pieces of our memory. We walk on the hard‚ cold stone path barefoot. The air is filled with the aroma of gardenia. The cool‚ crisp breeze slices through the humid atmosphere. The wind-chimes sing their songs of sharp‚ staccato notes. The forest seemingly forever expands over the flat land of Louisiana. The rustle of the leaves of 100 year old oak trees in the wind reminds us of the outside world we had momentarily left
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