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The EGR system routes a number of the exhaust gases (6 ? 10%) over the EGR valve, in for the Intake System, and finally inside combustion chamber. The exhaust gases are inert i.e. they cannot burn within the combustion chamber; also, the exhaust gases take up many of the space which will rather be taken from the intake air. This reduces the level of intake air available for the combustion process during each Power Stroke; which experts claim decreases the peak combustion temperatures. This leads to lower NOx emissions. 9. Their emotional appeal “None of the homeowners featured on the show know they’ve been chosen to receive a home makeover – it’s a surprise, so I can’t say any more about the episode we’re involved in at the moment. You’ll have to tune in and see it for yourself!” 4. The number of arguments which they make Darkness and lightweight are themes that run heavily through Van Gogh's work. Darkness and light reflected his wish create beauty, his feelings of inadequacy, and his need to touch the souls of males. For instance, Starry Night draws the viewer to the painting of the sleeping village having its swirls of light and it is rich evening sky.