Explain the birth rate and death rate in the population with the help of an example. What is age pyramid?

Explanation

### Step-by-Step Solution

1. **Understanding Birth Rate**:
- The birth rate, also known as the natality rate, refers to the number of live births in a population per unit of population over a specific period, usually expressed per 1,000 individuals per year.
- **Example**: If we have a population of 1,000 individuals and there are 10 births in a year, the birth rate can be calculated as:
\[ \text{Birth Rate} = \left( \frac{\text{Number of Births}}{\text{Total Population}} \right) \times 1000 = \left( \frac{10}{1000} \right) \times 1000 = 10 \text{ births per 1,000 individuals} \]
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