describe the locomotion of a leech on land

A combined interest in wildlife and trains may be covered in this 2 mile walk. From Totnes Railway Station, the sight of steam for doing things, an attractive route makes its path down the River Dart to Dartington. Once at Shinner's Bridge you can enjoy a highly earned rest at the Dartington Cider Press Crafts Centre and Caf. This route is suitable for everyone of any age and skills including wheelchairs. However the humans living around the spaceship were different to the humans who are living on earth now. They were so fat that they are can not walk. they travelled around in motorised chairs having a computer screen and cup & straw attached, chatting on phones and if they happened to drop out they simply laid there until a robot emerged and picked them up. The adults were fat, your children were fat! They just laid around all day long meals doing no exercise what so ever and to quote the captain, "Computer, define dancing". 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.