hpas 2018 ENVIRONMNT

HPAS 2018 Environment & Ecology Topic-Wise Solutions

HPAS 2018 Environment & Ecology Solutions

Question 1

Which of the following concentrations of Ozone in ambient air is considered good?

  • (A) Upto 0.06 ppm
  • (B) Upto 0.18 ppm
  • (C) Upto 0.15 ppm
  • (D) Upto 0.20 ppm
Correct Answer: (A) Upto 0.06 ppm
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1. Context & Definition

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2. Core Mechanism

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3. Analytical Breakdown

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4. Secondary Impacts

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5. HPAS Exam Relevance

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Question 2

The intensity of a normal conversation in decibel is between:

  • (A) 30-35
  • (B) 60-80
  • (C) 35-60
  • (D) 70-80
Correct Answer: (C) 35-60
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2. Core Mechanism

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3. Analytical Breakdown

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4. Secondary Impacts

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5. HPAS Exam Relevance

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Question 3

The impacts caused by the construction of dams and reservoirs include all, except:

  • (A) Loss of flora and fauna
  • (B) Reservoir-induced seismicity
  • (C) Waterborne diseases
  • (D) Desertification
Correct Answer: (B) Reservoir-induced seismicity
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1. Context & Definition

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2. Core Mechanism

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3. Analytical Breakdown

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4. Secondary Impacts

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5. HPAS Exam Relevance

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Question 4

Which of the following processes does not occur in the water cycle?

  • (A) Condensation
  • (B) Infiltration
  • (C) Evaporation
  • (D) Composition
Correct Answer: (D) Composition
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2. Core Mechanism

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3. Analytical Breakdown

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4. Secondary Impacts

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5. HPAS Exam Relevance

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Question 5

Match List-1 and List-2 and choose the correct answer from the codes given below:
List-1 (Events)
I. Appiko Movement
II. Narmada Bachao Andolan
III. People for Animals
IV. Resurrection of Kali Bein rivulet

List-2 (Names)
i. Maneka Gandhi
ii. Appu and Mamtha
iii. Balbir Singh Seechewal
iv. Medha Patkar

  • (A) I-i, II-ii, III-iii, IV-iv
  • (B) I-i, II-ii, III-iv, IV-iii
  • (C) I-iv, II-iii, III-ii, IV-i
  • (D) I-ii, II-iv, III-i, IV-iii
Correct Answer: (D) I-ii, II-iv, III-i, IV-iii
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1. Context & Definition

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2. Core Mechanism

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3. Analytical Breakdown

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4. Secondary Impacts

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5. HPAS Exam Relevance

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Question 6

Match the items given in Column-1 and Column-2 and choose the correct answer from the codes given below:
Column-1
(P) The Montreal Protocol
(Q) The Paris Agreement
(R) The Rio Summit
(S) First UN IPCC Conference

Column-2
i. 1992
ii. 1995
iii. 1987
iv. 2015

  • (A) (P)-i, (Q)-ii, (R)-iii, (S)-iv
  • (B) (P)-ii, (Q)-iii, (R)-i, (S)-iv
  • (C) (P)-iii, (Q)-iv, (R)-i, (S)-ii
  • (D) (P)-iv, (Q)-iii, (R)-ii, (S)-i
Correct Answer: (C) (P)-iii, (Q)-iv, (R)-i, (S)-ii
💡 Relevant Detailed Explanation
1. Context & Definition

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2. Core Mechanism

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3. Analytical Breakdown

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4. Secondary Impacts

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5. HPAS Exam Relevance

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