write the three law given by kepler's now did they help newton to arrive at the ...
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Kepler’s First law: The orbit of planet is an ellipse with sun at one of the foci. The figure below illustrates the elliptical orbit of earth with sun at its focus.
Kepler’s Second law: The line joining the planet and the Sun sweeps equal areas in equal intervals of time.
Kepler’s Third law: The Square of its period of revolution around the Sun is directly proportional to the cube of the mean distance of a planet from the Sun.
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Image result for explain briefly about bad effects of pollution.
Effects of Air Pollution
High levels of air pollution can cause an increased risk of heart attack, wheezing, coughing, and breathing problems, and irritation of the eyes, nose, and throat. Air pollution can also cause worsening of existing heart problems, asthma, and other lung complications.