General Knowledge MCQs
Topic Notes: General Knowledge
MCQs and preparation resources for competitive exams, covering important concepts, past papers, and detailed explanations.
Plato
- Biography: Ancient Greek philosopher (427–347 BCE), student of Socrates and teacher of Aristotle, founder of the Academy in Athens.
- Important Ideas:
- Theory of Forms
- Philosopher-King
- Ideal State
71
The infant mortality rate (IMR) is typically reported as the number of deaths of children under the age of one per:
Answer:
1,000 live births
The **Infant Mortality Rate (IMR)** is a crucial public health indicator, calculated as the number of deaths of infants under one year old per **1,000 live births**. This normalization allows for direct comparison across countries and over time.
72
In what year did the world population officially reach 1 billion people?
Answer:
1804
It took until approximately **1804** for the world's population to reach 1 billion people. Subsequent billions were added much faster, reflecting the acceleration of population growth due to the Industrial Revolution and advances in medicine.
73
Which country, alongside the United States, is one of the two nations that account for roughly one-third of global military spending?
Answer:
China
The **United States** has the world's largest military budget, followed distantly by **China**. Together, these two nations account for approximately one-third of the total global military expenditure.
74
The largest single demographic group in the world (defined by age) is often considered to be:
Answer:
Working Age (15-64 years)
The **working-age population (15-64 years)** is the largest demographic group globally, forming the backbone of the world's labor force. However, the ratio of this group to the elderly population (the dependency ratio) is changing rapidly in many developed countries.
75
The largest source of Foreign Direct Investment (FDI) into the United States is primarily from which region or country?
Answer:
European Union (EU)
Historically and currently, the **European Union (EU)**, often led by the United Kingdom and Germany, is the largest source of Foreign Direct Investment (FDI) into the United States, representing a significant portion of US capital investment.
76
What does the term 'replacement-level fertility' generally refer to in demographics?
Answer:
2.1 children per woman
**Replacement-level fertility** is the average number of children per woman needed for a population to exactly replace itself from one generation to the next. The value of **2.1** is used to account for potential mortality before reproductive age and the biological fact that slightly more male babies are born.
77
In the United States, what was the approximate official poverty rate in 2023?
Answer:
11.1%
The official poverty rate in the United States for 2023 was **11.1%**. The U.S. Census Bureau also releases the Supplemental Poverty Measure (SPM), which often yields a higher rate by accounting for non-cash benefits and necessary expenses like housing and utilities.
78
Which index specifically measures disparities in achievement between men and women in three dimensions: reproductive health, empowerment, and the labor market?
Answer:
Gender Inequality Index (GII)
The **Gender Inequality Index (GII)**, published by the UNDP, measures gender-based disparities. It focuses on three areas: reproductive health (MMR and TFR), empowerment (parliamentary representation and education), and economic activity (labor force participation).
79
The demographic transition model describes a historical shift in population growth. What is the key characteristic of the final stage (Stage 5)?
Answer:
Low birth rates and low death rates, with population decline
The final, theoretical Stage 5 of the **Demographic Transition Model** is characterized by very **low birth rates** (often below replacement level) and low death rates, leading to a natural **population decline** and an aging population.
80
Which country is the world's largest emitter of carbon dioxide ($ ext{CO}_2$) by total volume annually?
Answer:
China
**China** is the largest global emitter of carbon dioxide ($ ext{CO}_2$), largely due to its massive industrial sector and reliance on coal. However, when measured on a per capita basis, other countries often rank higher.