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Greenhouse Effect

In: Social Issues

Submitted By niinii
Words 642
Pages 3
Organizational Method: Topical

Topic : Greenhouse Effect
General purpose : To inform
Specific purpose : To inform my audiences that the causes of greenhouse effect.
Central idea : The causes of greenhouse effect are deforestation, burning of fossil, farm animals, fertilizer and electrical appliances.

INTRODUCTION: I. If I ask you, what is greenhouse effect, what is the first thing across in your mind? II. The greenhouse effect is the warming of the Earth by trapped gas in the atmosphere. III. The gases present in the atmosphere refer to the term “greenhouse gases”.
A. What are the greenhouse gases?
B. How those gases bring to greenhouse effect? IV. However, there are several causes of the greenhouse effect. V. Today I will explain these causes to you.
(Transition: We will start by looking at the deforestation.)

BODY: I. Deforestation is one of the causes of greenhouse effect.
A. Deforestation increases the amount of carbon dioxide in the atmosphere. 1. Photosynthesis cannot take place due to the disappearance of trees.
B. Deforestation is also due to the burden of our needs on land. 1. With the increase in population, more and more forests are being cut to provide accommodation.
C. Burning of forests for the purpose of deforestation will definitely increase the carbon dioxide.
(Transition: We will move to the next causes of greenhouse effect.)

II. Burning of fossil is another cause of greenhouse effect.
A. Greenhouse gases can also be released into the atmosphere due to the burning of fossil fuels, oil, coal and gas. 1. When burned, fossil fuels give off carbon dioxide gas, which heads straight into the atmosphere.
B. Methane is released from within the Earth whenever coal mines, gas or oil wells are opened. 1. The methane gas leaks out at a constant rate, further polluting the...

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