describe the locomotion of a leech on land

We all have days when it is an utter struggle only to get out of bed. We wish we are able to simply sleep all day long. We need to locate some kind of motivation, some reason to face your day ahead. At work we quite often find ourselves pushing aside particular tasks. Somehow we can't get ourselves to complete them so we keep finding other pursuits to function on, awaiting that elusive mood arrive at us in order to get things moving along. Even relationships sometimes are afflicted by periods when either or both sides might be experiencing individual conditions that keep these things from nurturing their link with their partner. The EGR system routes a few of the exhaust gases (6 ? 10%) through the EGR valve, back in towards the Intake System, and ultimately within the combustion chamber. The exhaust gases are inert i.e. they do not burn in the combustion chamber; also, the exhaust gases undertake a few of the space which may preferably be taken with the intake air. This reduces the quantity of intake air available for the combustion process during each Power Stroke; which decreases the peak combustion temperatures. This results in lower NOx emissions.