The main factor in increasing the population is

Options

A. More reproductive capacity
B. Early marriage
C. Higher natality and lower mortality
D. Suitable and favourable environment

Answer

To solve the question regarding the main factor in increasing the population, we will analyze the provided options step by step.

### Step 1: Understand the Options
The options given are:
1. More reproductive capacity
2. Early marriage
3. Higher natality and lower mortality
4. Suitable and favorable environment

### Step 2: Define Key Terms
- **Natality** refers to the birth rate of a population, indicating how many individuals are born in a given time period.
- **Mortality** refers to the death rate, indicating how many individuals die in a given time period.

### Step 3: Analyze Each Option
1. **More reproductive capacity**: While this can contribute to population growth, it is not a direct measure of population increase.
2. **Early marriage**: This may lead to more births, but it is not the primary factor affecting overall population growth.
3. **Higher natality and lower mortality**: This option directly addresses the birth and death rates. A high birth rate (higher natality) combined with a low death rate (lower mortality) leads to a net increase in population.
4. **Suitable and favorable environment**: While this can support population growth, it does not directly cause an increase in numbers.

### Step 4: Identify the Correct Answer
Based on the analysis, the option that most accurately reflects the main factor in increasing the population is **higher natality and lower mortality**. This combination leads to a greater number of individuals surviving and reproducing, thus increasing the population size.

### Conclusion
The main factor in increasing the population is **higher natality and lower mortality**.

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