Name the weakest and strongest force in natur

Write the four force in nature.

Name the different types of forces and their range

The centrifugal force is a

If the net external force acting on a body is zero, then the body at rest continues to remain at rest and a body in motion continues to move with uniform motion. What is the name given to this property of the body?

Name the two scientists who advocated the natural system of classification.

Give a brief account of viruses with respect to their structure and nature of genetic material. Also name four common viral diseases.