Previous year MCQs

General science UPPSC 2004 GS-I
Question

What is that in household dust, that offends asthmatics?

Answer & Solution

Answer: (Detailed Solution Below)

Option C: Dust mites

Detailed Solution:

The correct answer is “Dust mites”.
Dust mites are microscopic organisms that thrive in household dust, particularly in warm and humid environments. Their feces and body fragments contain allergens that can trigger asthma and allergic reactions in susceptible individuals. Therefore, dust mites are a common allergen found in household dust that can exacerbate asthma symptoms.

Similar Questions:

Consider the following statements:

Assert ion (A): Earnest Rutherford asserted before the Royal Society that man will never get nuclear power.
Reason (R): He was sure that Einstein's law will fail and mass will not be converted into energy.

Select your answer from the coding scheme 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
  3. C) (A) is true and (R) is false
  4. D) (A) is false but (R) is true
Which one of the following pair is NOT correctly matched ?
  1. A) Neoprene – Specialized rubber
  2. B) Aspartame – Synthetic sweetener
  3. C) Oxytocin – Hormone
  4. D) Rayon – Modified starch
A group formed by India, Brazil, China and other developing countries for future negotiations at WTO is known as:
  1. A) G-77
  2. B) G-55
  3. C) G-22
  4. D) G-11
Which one of the following taxes is levied and collected by the Union but distributed between Union and States?
  1. A) Corporation Tax
  2. B) Tax on income other than on agricultural income
  3. C) Tax on railway faires and freights
  4. D) Custom Duty
Assertion (A): Insolation is the most important source of energy for the biospheric ecosystem.
Reason (R): Solar radiation is converted into food and chemical energy by green plants.

Codes:
  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 the correct explanation of A
  3. C) A is true but R is false
  4. D) A is false but R is true
Biological resurfacing is a recent surgical technique used to treat problems of:
  1. A) Knee joints
  2. B) Ankle joints
  3. C) Hip joints
  4. D) Vertebral joints
Which one of the following is not a natural polymer:
  1. A) wool
  2. B) silk
  3. C) leather
  4. D) nylon
The nucleus of an atom consists of:
  1. A) Electrons and Neutrons
  2. B) Electrons and Protons
  3. C) Protons and Neutrons
  4. D) Protons and Radons
Biological Oxygen Demand(BOD) is a standard criteria for -
  1. A) Pollution assay in aquatic ecosystems
  2. B) Assaying 02 level in high altitude regions
  3. C) Measuring 02 level in blood
  4. D) Computing 02 level in forest ecosystems
Which of the following is a UNESCO heritage site
  1. A) Chilika Lake
  2. B) Corbett National Park
  3. C) Keoladeo National Park
  4. D) Kerala backwaters
Which one of the following is associated with 'Albedo'?
  1. A) Transmitting power
  2. B) Absorbing power
  3. C) Emissive power
  4. D) Reflecting power
Which one of the following organs will not feel any pain on being pricked by a needle?
  1. A) Skin
  2. B) Brain
  3. C) Eye
  4. D) Heart