Q1. What are the elements of an epidemic?

Classify infection rate.

In brief explain various factors affecting the development of epidemics.

Differentiate monocyclic and monocyclic diseases

Q2. Evaluate simple interest Vs compound interest diseases. Cite relevant examples. How plant disease can be measured?

How plant diseases could be forecasted and what are the needs for that?

Give an instance of a successful plant disease forecasting system and explain how it works.