Previous year MCQs

Environment & Ecology UPPSC 2017 GS-I
Question

The size of the Respirable Suspended Particulate Matter [R.S.P.M] in the air is:

Answer & Solution

Answer: (Detailed Solution Below)

Option D: less than 5 µm [microne]

Detailed Solution:

The correct answer is “ less than 5 µm [microne]”.
Respirable Suspended Particulate Matter (RSPM) is defined as particles with a diameter less than 5 µm. These particles are small enough to be inhaled deep into the lungs and can cause serious health problems.

Similar Questions:

Environmental degradation means
  1. A) overall lowering of environmental qualities
  2. B) adverse changes brought in by human activities
  3. C) ecological imbalance because of ecological diversity
  4. D) all the above
Arrange the following events in correct chronological sequence using the code given below

(A) Satyagraha against the Rowlatt Act
(B) Champaran Satyagraha
(C) Kheda Peasant struggle
(D) Ahmedabad Mill Strike
  1. A) B, D, C, A
  2. B) A, B, C, D
  3. C) B, A, D, C
  4. D) C, B, D, A
A cut diamond shines brilliantly due to:
  1. A) some inherent property
  2. B) total internal reflection
  3. C) its molecular structure
  4. D) absorption of light
Which of the following pairs are correctly matched?

(1) Idukki: Thermal Power Station
(2) Sabarigiri: Hydroelectric project
(3) Ghatprabha: Irrigation project
(4) Ramganga: Multipurpose project
  1. A) 2, 3 and 4
  2. B) 1, 2, 3 and 4
  3. C) 3 and 4
  4. D) 1 and 2
Given below are two statements:

Assertion (A): According to the World Health Organization (WHO) in 1993, there were 16.5 million deaths due to infectious diseases worldwide.
Reason (R): Urbanisation without health planning leads to the spread of diseases.

Choose the correct answer from the codes given below:
  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) [A] is false but [R] are true
Which one of the following is the most effective factor of coral bleaching?
  1. A) Marine pollution
  2. B) Increase of salinity of seas
  3. C) Rise in normal temperature of sea-water
  4. D) Outbreak of diseases and epidemics
Match the following list-I with list-II and select, the correct answer from the code given below the Lists:
List-I (States) - List-II (National parks)

A. Uttar Pradesh - 1. Bandipur
B. Assam - 2. Rajaji National Park
C. Orissa - 3. Similipal
D. Karnataka - 4. Manas

Code:
A B C D
  1. A) 1 2 3 4
  2. B) 2 4 3 1
  3. C) 4 3 2 1
  4. D) 2 3 1 4
The country most ravaged by the Tsunami fury was:
  1. A) Australia
  2. B) India
  3. C) Indonesia
  4. D) Thailand
Assertion (A): Increase in the diversity of food webs promotes ecosystem stability.
Reason (R): It increases the resilience of the ecosystem.
  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) A is false but R is true
Among the following Union Territories the female Literacy is highest according to Census 2011
  1. A) Poducherry
  2. B) Chandigarh
  3. C) Daman and Diu
  4. D) Lakshdweep
Which of the following represents the average increase in earth's temperature during the last century?
  1. A) 0.6 degree Celsius
  2. B) 0.7 degree Celsius
  3. C) 0.8 degree Celsius
  4. D) 0.9 degree Celsius
Which one of the following provides the cryogenic indicator of climate change?
  1. A) Ice core
  2. B) Fossilized pollen
  3. C) Tree ring growth
  4. D) Evaporite deposits