IDAT Global Knowledge and Science 3 — Questions and Answers
Question 1: Which country has the largest proven oil reserves in the world as of recent estimates?
- Saudi Arabia
- Russia
- Venezuela (Correct answer)
- United States
Correct answer: Venezuela
Venezuela holds the world's largest proven oil reserves, primarily in the Orinoco Belt, surpassing Saudi Arabia.
Question 2: What is the name of the process by which plants convert sunlight into chemical energy stored as glucose?
- Respiration
- Transpiration
- Photosynthesis (Correct answer)
- Fermentation
Correct answer: Photosynthesis
Photosynthesis uses sunlight, water, and CO₂ to produce glucose and oxygen in chloroplasts.
Question 3: The Silk Road was a historical trade network that primarily connected which two regions?
- Europe and Sub-Saharan Africa
- East Asia and the Mediterranean (Correct answer)
- South America and West Africa
- India and Southeast Asia
Correct answer: East Asia and the Mediterranean
The Silk Road linked China and East Asia with Central Asia, the Middle East, and eventually the Mediterranean world.
Question 4: Which physical law states that the pressure of a gas is inversely proportional to its volume at constant temperature?
- Charles's Law
- Gay-Lussac's Law
- Boyle's Law (Correct answer)
- Avogadro's Law
Correct answer: Boyle's Law
Boyle's Law states P₁V₁ = P₂V₂ when temperature and amount of gas remain constant.
Question 5: Which continent contains the most countries by number?
- Asia
- South America
- Africa (Correct answer)
- Europe
Correct answer: Africa
Africa contains 54 recognized sovereign states, more than any other continent.
Question 6: What is the SI unit of electric current?
- Volt
- Watt
- Ampere (Correct answer)
- Ohm
Correct answer: Ampere
The ampere (A) measures the rate of electric charge flow and is one of the seven SI base units.
Question 7: Which global organization is responsible for coordinating international health responses and setting health standards?
- UNICEF
- World Health Organization (Correct answer)
- World Bank
- UNESCO
Correct answer: World Health Organization
The WHO, a specialized UN agency founded in 1948, leads international public health efforts.
IDAT Global Knowledge and Science 3
Which country has the largest proven oil reserves in the world as of recent estimates?