Early man used animal power to pull the vehicles and plough the agriculture land. Steam engine, spacecraft and motor boat were invented much later.

Centimetre and millimetre are the units of length, related as
$1cm=10mm$
Therefore, $1mm=0.1cm$

Motion of an object is always relative. It depends on the observer. For any observer, if a body is not changing its position with respect to time then it is said to be at rest.

When a body is moving in a straight line, it is said to be in rectilinear motion. While marching in a parade, soldiers move in a straight line. Hence, it is an example of rectilinear motion.

The minimum length that can be measured using a metre scale is 0.1 cm. Hence, 22.0 cm represents the most appropriate observation.

The SI base units are seven units of measure defined by the International System of Units as the basic set from which all other units can be derived. The SI unit of length is metre. 

It was introduced in France. The first practical realisation of the metric system came in 1799, during the French Revolution, when the existing system of measure, which had fallen into disrepute, was temporarily replaced by a decimal system based on the kilogram and the metre.

Invention of wheel revolutionized the mode of transport.