Question

Identify the correct equation with respect to diagram below, which depicts decrease in population density.

• A. \(P>Q\)
• B. \(P\lt Q\)
• C. \(P=Q\)
• D. \(P\propto Q\)

Hint:

Population density falls when deaths and emigration exceed births and immigration, so the final value is smaller than the initial value.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept
The diagram shows the population going from state P to state Q through a decrease in population density. So P is the density before the change and Q the density after it.

Step 2: Compare the values
A fall in density means the final value is smaller than the initial one, so \(Q<P\), which is the same as \(P>Q\).

Step 3: Why it happens
Density decreases when deaths plus emigration exceed births plus immigration.

Final Answer:
The correct relation is P greater than Q. \[ \boxed{\text{(A) }P>Q} \]