Previous year MCQs

General science UPPSC 1993 GS-I
Question

Cause of AIDS is

Answer & Solution

Answer: (Detailed Solution Below)

Option C: Virus

Detailed Solution:

The correct answer is “Virus”.
AIDS is caused by the Human Immunodeficiency Virus (HIV). HIV is a virus that attacks the immune system, making the body vulnerable to various infections and diseases.

Similar Questions:

Use of polished rice in human diet causes following diseases:
  1. A) Rickets
  2. B) Anemia
  3. C) Goitre
  4. D) Beriberi
Which one of the following concerns soil?
  1. A) Edaphic
  2. B) Climatic
  3. C) Biotic
  4. D) Topography
Match List - I with List - II and select the correct answer from the codes given below:

List - I - List-II
A. Vitamin B12 - 1. Magnesium
B. Haemoglobin - 2. Cobalt
C. Chlorophyll - 3. Copper
D. Brass - 4. Iron

Codes:
A B C D
  1. A) 2 4 1 3
  2. B) 2 1 3 4
  3. C) 4 1 2 3
  4. D) 3 4 2 1
In which of the following departments of a hospital will 'Cath lab' be found?
  1. A) Pathology
  2. B) Surgery
  3. C) Cardiology
  4. D) Nuclear Medicine
In a diesel engine the fuel used is:
  1. A) vapour of diesel and air
  2. B) diesel only
  3. C) mixture of diesel and petrol
  4. D) mixture of diesel, air and petrol
Which of the following pairs is NOT correctly matched ?
Quantity – S. I. Unit
  1. A) Activity of radio active substance – Curie
  2. B) Power of lense – Diopter
  3. C) Heat – Joule
  4. D) Pressure – Pascal
Bronze is an alloy of:
  1. A) Copper and Tin
  2. B) Copper and Zinc
  3. C) Copper and Silver
  4. D) Copper and Lead
The alkaloid caffeine is present in
  1. A) Tea only
  2. B) Coffee only
  3. C) Tea and coffee both
  4. D) Lemon water
Which one of the following is not correctly matched? Nitrogen fixing agent – Crop
  1. A) Blue green algae – Paddy
  2. B) Rhizobium Leguminisarum – Pea
  3. C) Azotobacter – Wheat
  4. D) Azolla – Maize
Which one of the following gases is used for the purification of drinking water?
  1. A) Sulphur dioxide
  2. B) Chlorine
  3. C) Fluorine
  4. D) Carbon dioxide
Which one of the following energy conversions takes place in carrying out the process of photosynthesis?
  1. A) light to chemical energy
  2. B) light to thermal energy
  3. C) thermal to biochemical energy
  4. D) heat to kinetic energy
Assertion (A): Lighting a candle in space does not produce a flame.
Reason (R): A flame exists due to the pull of gravity.

In the context of the above, which one of the following is correct?
  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.