describe the locomotion of a leech on land

Exhaust gases are generated from the combustion chamber after the air-fuel mixture is burnt through the Power Stroke. These exhaust gases are "thrown out" in the combustion chamber through the Exhaust Stroke. The exhaust gases, including NOx, move through the Exhaust Valve, the Exhaust Passages and finally towards the atmosphere over the Exhaust System. It is clear that these two perspectives are going to draw swords against the other frequently. Although most people agree that efficient financial markets are best for everyone, the steps that government have to take to have there often run counter for the microeconomic interests of business. Sometimes a merger should be blocked to foster competition. Sometimes disclosures must be legislated to ensure consumers will make informed decisions. And sometimes certain activities should be regulated or prohibited to ensure that some are certainly not financially harmed by others.