Gs Tech MCQs for 9th Class (Punjab Board)

This page has over 1,600 multiple-choice questions for Gs Tech (9th Class (Punjab Board)), arranged in 6 chapters and 12 topics. The chapters include Introduction and Role of Science, Our Life and Chemistry, Biochemistry and Biotechnology, Human Health and Diseases - Cause and Prevention. Every question has four options, an instant answer and, where available, a short explanation.

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Chapters and topics

  • Introduction and Role of Science 2 topics · 235 MCQs
  • Our Life and Chemistry 2 topics · 269 MCQs
  • Biochemistry and Biotechnology 2 topics · 238 MCQs
  • Human Health 2 topics · 365 MCQs
  • Diseases - Cause and Prevention 2 topics · 225 MCQs
  • Environment and Natural Resources 2 topics · 277 MCQs

Sample Gs Tech MCQs

Try these questions, then open the full practice to work through every chapter. Tap “Show the answer” after you choose.

Q1. Which branch of science deals with biology studied with the help of chemistry?

  1. agriculture
  2. astronomy
  3. biochemistry
  4. biophysics
Show the answer

Answer: C. biochemistry

Biochemistry: biology studied with the help of chemistry.

Q2. Which element and its importance is correctly matched?

  1. potassium — cell walls, bones, teeth and blood clotting
  2. iron — preventing tooth decay; fluorides used in toothpaste
  3. calcium — cell walls, bones, teeth and blood clotting
  4. chlorine — chlorophyll; alloys like magnalium for aircraft
Show the answer

Answer: C. calcium — cell walls, bones, teeth and blood clotting

Correct pair: calcium — cell walls, bones, teeth and blood clotting.

Q3. Reactions that build large molecules from smaller ones, using energy is called:

  1. anabolism
  2. catabolism
  3. osmosis
  4. metabolism
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Answer: A. anabolism

Anabolism: reactions that build large molecules from smaller ones, using energy.

Q4. The mineral iodine is important for:

  1. fluid balance and nerve signalling
  2. immune function and wound healing
  3. strengthening teeth
  4. thyroid hormone production
Show the answer

Answer: D. thyroid hormone production

The correct answer is “thyroid hormone production”. Iodine: thyroid hormone production.

Q5. Polio mainly affects children below the age of:

  1. 20 years
  2. 2 years
  3. 15 years
  4. 10 years
Show the answer

Answer: B. 2 years

The correct answer is “2 years”. Polio virus affects the nervous system.

Q6. The ozone layer is present in the:

  1. troposphere
  2. ocean
  3. upper stratosphere
  4. soil
Show the answer

Answer: C. upper stratosphere

It protects the Earth from UV radiation.

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