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Q.119 Botany ⭐ 360° Option Elimination Active
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NEET 2023 Botany Question 119 Solution

Topic: Biodiversity and Conservation · Official NTA Booklet Code G5
NEET 2023 Botany Question 119: International Environmental Summits: The Earth Summit

Question

The historic Convention on Biological Diversity, 'The Earth Summit' was held in Rio de Janeiro in the year:

  1. (1)2002
  2. (2)1985
  3. (3)1992
  4. (4)1986
✓
Verified Against NTA Final Answer Key
Option (3) : 1992
📚 Biodiversity and Conservation Easy
📋 Given Parameters & Problem Setup
Event Convention on Biological Diversity ("The Earth Summit")
Location Rio de Janeiro, Brazil
⚡

The 30-Second Exam Hall Shortcut: ⚡ Global Summits Timeline: Rio = 1992 vs. Johannesburg = 2002

⏱️ Save ~20 seconds

The historic Earth Summit in Rio de Janeiro occurred in 1992 (calling upon all nations to take measures for biodiversity conservation). Ten years later, in 2002, the World Summit followed in Johannesburg!

1 1986: Environmental (Protection) Act of India.
2 1992: The Earth Summit, Rio de Janeiro (Convention on Biological Diversity).
3 2002: World Summit on Sustainable Development, Johannesburg, South Africa.
4 Match Option (3) 1992.
🛡️
Why You Can 100% Trust This Shortcut: Canonical NCERT Biodiversity and Conservation international conventions timeline.
📐

Step-by-Step Rigorous Workflow & Mathematical Proof

Step 1

Background of The Earth Summit

The historic United Nations Conference on Environment and Development (UNCED), widely known as "The Earth Summit", was convened in Rio de Janeiro, Brazil, in 1992:

The Earth Summit (Rio de Janeiro)  ⟹  1992\text{\textbf{The Earth Summit (Rio de Janeiro)}} \implies \mathbf{1992}
Step 2

Commitments Under the Convention on Biological Diversity (CBD)

The Earth Summit called upon all nations to take appropriate measures for the conservation of biodiversity and the sustainable utilization of its benefits.

Step 3

Chronological Distinction from the World Summit

In a follow-up ten years later, the World Summit on Sustainable Development was held in 2002 in Johannesburg, South Africa, where 190 countries pledged to achieve significant reductions in the rate of biodiversity loss by 2010.

⭐

360° Option Elimination Engine Key Feature

Diagnose every choice: Know exactly why the right option works and why distractors fail.

4-Option Deep Scan
1 1
✗ Incorrect
Verdict & Scientific Reason:

2002 is the year of the World Summit on Sustainable Development in Johannesburg, South Africa.

⚠️
Student Fallacy (Why candidates pick this trap): Confusing the 1992 Rio Earth Summit with the 2002 Johannesburg World Summit.
2 2
✗ Incorrect
Verdict & Scientific Reason:

1985 marked the discovery of the Antarctic ozone hole (Farman et al.) and the Vienna Convention, not the Rio Summit.

⚠️
Student Fallacy (Why candidates pick this trap): Arbitrary historical date selection.
3 3
✓ 100% Correct
Verdict & Scientific Reason:

Verbatim NCERT: The historic Convention on Biological Diversity ('The Earth Summit') was held in Rio de Janeiro in 1992.

💡
Why this is airtight: None; canonical ecological timeline.
4 4
✗ Incorrect
Verdict & Scientific Reason:

1986 is the enactment year of the Environment (Protection) Act in India.

⚠️
Student Fallacy (Why candidates pick this trap): Confusing Indian national environmental legislation with international summits.
⚠️

NTA Trap Alert: Rio 1992 vs. Johannesburg 2002 Trap

NCERT describes exactly two major international summits side-by-side: Rio de Janeiro (1992) and Johannesburg (2002). Students often interchange the years.

🛡️ How to avoid the -1 mark: Earth Summit = Rio 1992. World Summit = Johannesburg 2002 (+10 years).
📖

Core NEET Syllabus Standard

NCERT Biology · Biodiversity and Conservation Standard Benchmark
Core Scientific Principle Tested:

"The historic Convention on Biological Diversity ('The Earth Summit') held in Rio de Janeiro in 1992, called upon all nations to take appropriate measures for conservation of biodiversity."

Syllabus Focus: How do we conserve Biodiversity?
✓ Core NEET UG Syllabus Anchor Syllabus & Academic Standards ↗

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