Understanding Sex Ratio and Population Dynamics

The term sex ratio refers to the number of females per 1000 males in a given population at a specific time. It is a vital demographic indicator that reflects the balance between the sexes in a society. Analyzing the sex ratio can provide insights into various aspects of a population, including social norms, healthcare access, and economic conditions.

Let's examine each statement provided in the question about the sex ratio:

1. Statement (A): Sex ratio shows the socio-economic conditions of women.

   This statement is generally considered correct. The sex ratio is influenced by factors such as birth rates, death rates, migration, and importantly, the survival rates of males and females. In many societies, discrimination against female children, lack of adequate healthcare for women and girls, female infanticide, sex-selective abortions, and malnutrition can lead to a lower number of females relative to males. A skewed sex ratio favoring males can often be an indicator of poor socio-economic conditions and discrimination faced by women in that society. Therefore, the sex ratio serves as a crucial indicator of the status and socio-economic well-being of women.

2. Statement (B): Latvia has the highest sex ratio in the world.

   This statement is considered correct based on demographic data. Sex ratio is often expressed as the number of females per 1000 males. Countries in Eastern Europe, including Latvia, often exhibit a higher proportion of females compared to males. This can be attributed to various factors like historical events, differing mortality rates between sexes, and emigration patterns. Latvia is frequently cited as a country with a high female-to-male ratio, indicating a high sex ratio.

3. Statement (C): Around two-third countries listed by United Nations have sex ratio in favor of females.

   This statement is also considered correct. While some regions like parts of Asia have skewed sex ratios favoring males, globally, and across a majority of countries, the sex ratio tends to be slightly in favor of females, especially in older age groups due to higher male mortality rates. The United Nations tracks demographic data for numerous countries, and the distribution of sex ratios shows that a significant proportion, roughly two-thirds, report a sex ratio where females outnumber males (sex ratio > 1000 females per 1000 males) when considering the total population, or at least a sex ratio closer to parity or favouring females compared to regions with significant male bias.

4. Statement (D): Asia has a high sex ratio in favor of females.

   This statement is incorrect. While Asia is a vast continent with diverse demographic profiles, several major regions within Asia, particularly South Asia, East Asia, and parts of Southeast Asia, are known for having sex ratios that are skewed significantly in favor of males. This is often linked to son preference, leading to practices like sex-selective abortion and infanticide. Therefore, stating that Asia as a whole has a high sex ratio in favor of females is factually inaccurate; the trend is often the opposite in many populous Asian countries.

Based on the analysis of each statement, statements (A), (B), and (C) are correct, while statement (D) is incorrect.

Selecting the Correct Option

We need to choose the option that includes only the correct statements (A), (B), and (C).

Let's look at the given options:

• Option 1: A, B, and C only
• Option 2: B, C, and D only
• Option 3: A, C, and D only
• Option 4: A, B, and D only

Comparing our findings with the options, Option 1 correctly lists statements A, B, and C as correct.

Therefore, the correct answer is Option 1.

Revision Table: Sex Ratio Concepts

Additional Information: Factors Affecting Sex Ratio

The sex ratio of a population is not static and can be influenced by a variety of factors throughout the life cycle:

• Sex Ratio at Birth: Globally, slightly more males are born than females, typically around 105 males per 100 females (or a sex ratio of approximately 952 females per 1000 males).
• Differential Mortality Rates: Males generally have higher mortality rates than females at almost all ages, including during infancy and adulthood. This means that as a population ages, the proportion of females tends to increase, leading to a sex ratio that favors females in older age groups and often in the total population unless other factors are at play.
• Migration: International and internal migration can significantly impact the sex ratio of a region, as migrants are often predominantly male or female depending on the reason for migration (e.g., work-related migration often involves more males).
• Socio-cultural Factors: In some societies, cultural preferences for sons can lead to practices that directly or indirectly reduce the survival rate of females, such as neglect, female infanticide, or sex-selective abortion. This is a major cause of skewed sex ratios favoring males in certain parts of the world, notably in some Asian countries mentioned in statement (D).
• Healthcare Access: Access to quality healthcare, especially maternal healthcare, can affect the survival rates of females.

Understanding these factors is crucial for interpreting sex ratio data and its implications for societal health and equality.