Previous year MCQs

Environment & Ecology UPPSC 2017 GS-I
Question

Which of the following fuels would produce minimum environmental pollution?

Answer & Solution

Answer: (Detailed Solution Below)

Option A: Hydrogen

Detailed Solution:

The correct answer is “Hydrogen”.
Hydrogen would produce the minimum environmental pollution among the given options.  

When hydrogen burns, it reacts with oxygen to produce water vapor. This is the only byproduct, making it a relatively clean-burning fuel compared to other options.  

Similar Questions:

Which of the following tree, once very popular in social forestry, is now taken to be environmental hazard:
  1. A) Babul
  2. B) Amaltas
  3. C) Neem
  4. D) Eucalyptus
Which one of the following trees is considered to be an environmental hazard?
  1. A) Babul
  2. B) Amaltas
  3. C) Neem
  4. D) Eucalyptus
The Tropic of cancer passes through which of the following states? Select the correct answer from the codes given below:

(A) Gujarat
(B) Chattisgarh
(C) Uttar Pradesh
(D) Jharkhand
  1. A) A, B and D
  2. B) A, B, C and D
  3. C) A, C and D
  4. D) B, C and D
Which of the following Sustainable Development Goal (SDG) will target to water availability for all and its permanent management upto 2030 in India?
  1. A) SDG – 6
  2. B) SDG – 7
  3. C) SDG – 8
  4. D) SDG – 9
World Environment Day is celebrated on:
  1. A) December 1
  2. B) June 5
  3. C) November 14
  4. D) August 15
Which of the following Acts provides for protection to wild animals in India?
  1. A) Wildlife Protection Act 1972
  2. B) Forests Protection Act, 1982
  3. C) Environment Protection Act, 1996
  4. D) West Bengal Wild Animal Protection Act, 1959
Consider the following statements and choose the correct answer by using the codes given below:

Assertion [A]: India is a democratic country.
Reason [R]: India has a constitution of its own
  1. A) Both [A] and [R] are true and [R] is the correct explanation of [A]
  2. B) Both [A] and [R] are true but [R] is not the correct explanation of [A]
  3. C) [A] is true but [R] is false
  4. D) Both [A] and [R] are false
Match list-I with list-Il and select the correct answer using the code given below the lists -

List I - List-Il
(Sustainable Development Goal) - (Related With)

(A) SDG - 10 - (1) Climate Action
(B) SDG - 13 - (2) Life on Land
(C)SDG-14 - (3) Reduced inequalities
(D) SDG - 15 - (4) Life below water
Code -
  1. A) A-(1), B-(2), C-(3), D-(4)
  2. B) A-(2), B-(3), C-(1), D-(4)
  3. C) A-(3), B-(2), C-(4), D-(1)
  4. D) A-(3), B-(1), C-(4), D-(2)
Non-conventional energy sources are those energy sources, that are -
  1. A) Non-renewable
  2. B) Produced from electricity
  3. C) Renewable
  4. D) Produced from heat
The cause of sweet taste in fruits is:
  1. A) Maltose
  2. B) Ribose
  3. C) Lactose
  4. D) Fructose
Euro emission norms are emission standards and these represent a package setting limits for emission from a vehicle. Which of the following gases is covered under this?
  1. A) Carbon monoxide
  2. B) Hydro carbons
  3. C) Nitrogen oxides
  4. D) All the above
Dachigam National Park is associated with which of the following?
  1. A) Musk Deer
  2. B) Golden Oriole
  3. C) Yellow-throated Marten
  4. D) Hangul or Kashmir Stag