Explanation

• The Green Revolution (1960s–70s) introduced dwarf, high-yielding crop varieties.
• These varieties respond well to fertilizers and irrigation, increasing production.
• Mainly applied to wheat and rice in developing countries.
• Helped reduce hunger and improve food security globally.
• Introduced by scientists like Norman Borlaug.

Last verified on 12-02-2026

Explanation

• Definition: Total value of goods and services produced within a country in a year
• Components: Consumption, Investment, Government Spending, Net Exports
• Purpose: Measures economic performance and standard of living
• Units: Usually in US dollars or local currency
• Major Example: Pakistan’s GDP in 2025 ≈ $500 billion (nominal)

Explanation

• Agriculture remains a key contributor to Pakistan’s economy.
• It directly contributes close to 24% of the country’s Gross Domestic Product (GDP).

Last verified on 03-02-2026

Explanation

Explanation

• In 1800, agriculture was largely manual and traditional.
• 100 agrarian people could barely produce enough surplus for 10 people.
• This shows how food production efficiency was low before industrialization.

Last verified on 23-03-2026