Previous year MCQs

General science UPPSC 2019 GS-I
Question

Which one of the following is associated with 'Albedo'?

Answer & Solution

Answer: (Detailed Solution Below)

Option D: Reflecting power

Detailed Solution:

The correct answer is “Reflecting power”.
Albedo is a measure of how reflective a surface is.

A surface with high albedo reflects a large portion of the sunlight that strikes it, while a surface with low albedo absorbs most of the sunlight. For example, snow has a high albedo, while dark soil has a low albedo.

Similar Questions:

Thermodynamically the most stable form of carbon is
  1. A) Coal
  2. B) Fullerenes
  3. C) Graphite
  4. D) Diamond
Assertion (A): Coal based thermal power stations contribute to acid rains.
Reason (R): Oxides of carbon are emitted when coal burns.

Select the correct answer using the code given below:
Code:
  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
It is difficult to walk on ice than on road because:
  1. A) Ice is harder than road
  2. B) Road is harder than ice
  3. C) Ice does not offer any reaction when we push it with our foot
  4. D) Ice has a lesser friction than road
The controversial Terminator Technology backed by developed nations seeks to provide:
  1. A) bio technologically improved variety of seeds which are ensured to yield sterile seed for next generation
  2. B) transgenic seeds which ensure no terminating passage of good traits generation after generation
  3. C) selective termination of crop diseases
  4. D) hybrid seeds that can be eaten but not grown
The substances present at the centre of the sun are in:
  1. A) solid, liquid and gaseous states
  2. B) liquid state only
  3. C) gaseous state only
  4. D) both liquid and gaseous states
A person with vision defect 'Myopia' can see:
  1. A) nearby objects clearly
  2. B) distant objects clearly
  3. C) nearby as well as distant objects clearly
  4. D) neither nearby nor distant objects clearly
Which one of the following is not correctly matched? Pollutant – Disease caused
  1. A) Mercury – Minamata disease
  2. B) Cadmium – Itai-Itai disease
  3. C) Nitrate Ion – Blue baby syndrome
  4. D) Fluoride Ion – Indigestion
Cryogenic engine is used for
  1. A) Boeing
  2. B) As a fast rail engine
  3. C) In space shuttle
  4. D) In Nuclear furnace
Laser beam is used for:
  1. A) treatment of cancer
  2. B) treatment of heart
  3. C) treatment of eye
  4. D) treatment of kidney
Telescope was invented by:
  1. A) Gallileo
  2. B) Gutinberg
  3. C) Edision
  4. D) Graham Bell
Which of the following is concerned with soil?
  1. A) Edaphic
  2. B) Climatic
  3. C) Biotic
  4. D) Topography
Which of the following types of glass can cut off ultraviolet rays?
  1. A) Soda glass
  2. B) Pyrex glass
  3. C) Jena glass
  4. D) Crookes glass