Everyday Science MCQs

89 Questions
21
Medium fpsc ppsc nts

Which scientist is known as the father of modern genetics for his work on pea plant inheritance?

  • A Charles Darwin
  • B Gregor Mendel
  • C Louis Pasteur
  • D James Watson
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Correct Answer: Option B — Gregor Mendel
Explanation: Gregor Mendel is known as the father of modern genetics due to his pioneering experiments on pea plants that established the fundamental laws of inheritance and trait transmission.
22
Easy fpsc ppsc nts

Which scientist is credited with developing the theory of evolution by natural selection?

  • A Gregor Mendel
  • B Charles Darwin
  • C Louis Pasteur
  • D Robert Hooke
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Correct Answer: Option B — Charles Darwin
Explanation: Charles Darwin developed the theory of evolution by natural selection explaining how species change over generations through differential survival and reproduction based on inherited traits.
23
Easy fpsc ppsc nts

Which common antibiotic was first discovered from a mold by Alexander Fleming?

  • A Tetracycline
  • B Penicillin
  • C Amoxicillin
  • D Streptomycin
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Correct Answer: Option B — Penicillin
Explanation: Penicillin was first discovered by Alexander Fleming from the mold Penicillium notatum marking a major breakthrough in medicine that revolutionized the treatment of bacterial infections.
24
Medium fpsc ppsc nts

Which type of cell division produces gametes with half the chromosome number for sexual reproduction?

  • A Mitosis
  • B Meiosis
  • C Binary fission
  • D Budding
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Correct Answer: Option B — Meiosis
Explanation: Meiosis is the type of cell division that produces gametes with half the normal chromosome number ensuring genetic diversity during sexual reproduction in organisms.
25
Medium fpsc ppsc nts

Which type of cell division produces two genetically identical daughter cells for growth and repair?

  • A Meiosis
  • B Mitosis
  • C Binary fission
  • D Budding
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Correct Answer: Option B — Mitosis
Explanation: Mitosis is the type of cell division that produces two genetically identical daughter cells supporting growth tissue repair and the replacement of damaged or aging cells.
26
Medium fpsc ppsc nts

Which biological process allows water to move across a cell membrane from a region of low solute concentration to high concentration?

  • A Diffusion
  • B Osmosis
  • C Active transport
  • D Filtration
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Correct Answer: Option B — Osmosis
Explanation: Osmosis is the movement of water molecules across a semi-permeable membrane from an area of low solute concentration to high concentration helping maintain cellular water balance.
27
Medium fpsc ppsc nts

Which process allows plants to release excess water vapor through small pores in their leaves?

  • A Photosynthesis
  • B Respiration
  • C Transpiration
  • D Osmosis
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Correct Answer: Option C — Transpiration
Explanation: Transpiration is the process by which plants release excess water vapor through small pores called stomata on their leaves helping regulate temperature and nutrient transport.
28
Easy fpsc ppsc nts

Which common household chemical reaction produces a foaming effect often used in classroom volcano experiments?

  • A Baking soda and vinegar reaction
  • B Salt dissolving in water
  • C Sugar caramelizing
  • D Ice melting
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Correct Answer: Option A — Baking soda and vinegar reaction
Explanation: The baking soda and vinegar reaction produces carbon dioxide gas creating a foaming eruption effect commonly used in classroom volcano demonstrations to illustrate acid base chemistry.
29
Hard fpsc ppsc nts

Which gas is primarily responsible for causing the bends in deep sea divers who ascend too quickly?

  • A Oxygen
  • B Nitrogen
  • C Carbon dioxide
  • D Helium
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Correct Answer: Option B — Nitrogen
Explanation: Nitrogen dissolved in the bloodstream under high pressure can form bubbles if a diver ascends too quickly causing decompression sickness commonly known as the bends.
30
Medium fpsc ppsc nts

Which common kitchen ingredient is used as a natural indicator to test acidity or basicity in simple science experiments?

  • A Red cabbage extract
  • B Table salt
  • C Sugar
  • D Cooking oil
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Correct Answer: Option A — Red cabbage extract
Explanation: Red cabbage extract contains a natural pigment called anthocyanin that changes color depending on pH making it a popular natural indicator for testing acidity or basicity at home.
31
Medium fpsc ppsc nts

Which common everyday substance is classified as a strong acid frequently used in car batteries?

  • A Acetic acid
  • B Sulfuric acid
  • C Citric acid
  • D Carbonic acid
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Correct Answer: Option B — Sulfuric acid
Explanation: Sulfuric acid is a strong acid commonly used as the electrolyte in lead acid car batteries enabling the chemical reactions necessary for storing and releasing electrical energy.
32
Medium fpsc ppsc nts

Which type of fat is generally considered healthier and is commonly found in foods like olive oil and nuts?

  • A Saturated fat
  • B Trans fat
  • C Unsaturated fat
  • D Hydrogenated fat
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Correct Answer: Option C — Unsaturated fat
Explanation: Unsaturated fats commonly found in olive oil nuts and avocados are generally considered healthier than saturated or trans fats as they support heart health when consumed in moderation.
33
Easy fpsc ppsc nts

Which macronutrient is essential for building and repairing body tissues such as muscles?

  • A Carbohydrates
  • B Fats
  • C Proteins
  • D Fiber
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Correct Answer: Option C — Proteins
Explanation: Proteins are essential macronutrients required for building and repairing body tissues including muscles skin and organs as they provide the amino acids needed for cellular growth.
34
Easy fpsc ppsc nts

Which macronutrient is the body's primary and most efficient source of quick energy?

  • A Proteins
  • B Fats
  • C Carbohydrates
  • D Vitamins
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Correct Answer: Option C — Carbohydrates
Explanation: Carbohydrates serve as the body's primary and most efficient source of quick energy as they are readily broken down into glucose which cells use for immediate fuel.
35
Easy fpsc ppsc nts

Which common food item is a good source of dietary fiber important for digestive health?

  • A White bread
  • B Whole grains
  • C Refined sugar
  • D Processed cheese
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Correct Answer: Option B — Whole grains
Explanation: Whole grains are an excellent source of dietary fiber which supports healthy digestion regulates blood sugar levels and helps maintain overall gastrointestinal health.
36
Medium fpsc ppsc nts

Which everyday observation demonstrates the concept of inertia in physics?

  • A A ball rolling downhill
  • B A seated passenger jerking forward during sudden braking
  • C Water boiling at high altitude
  • D A magnet attracting iron filings
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Correct Answer: Option B — A seated passenger jerking forward during sudden braking
Explanation: A seated passenger jerking forward during sudden braking demonstrates inertia as the body continues moving forward due to its tendency to resist changes in its state of motion.
37
Medium fpsc ppsc nts

Which natural process explains how mountains gradually wear down over long periods of time?

  • A Erosion
  • B Deposition
  • C Sedimentation
  • D Weathering and erosion
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Correct Answer: Option D — Weathering and erosion
Explanation: Weathering and erosion together explain how mountains gradually wear down over long periods through physical chemical and biological processes that break down and transport rock material.
38
Easy fpsc ppsc nts

Which renewable energy source generates electricity by harnessing the flow of water through dams or rivers?

  • A Solar energy
  • B Wind energy
  • C Hydropower
  • D Geothermal energy
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Correct Answer: Option C — Hydropower
Explanation: Hydropower generates electricity by harnessing the kinetic energy of flowing water typically through dams or river turbines making it one of the oldest renewable energy sources used worldwide.
39
Easy fpsc ppsc nts

Which renewable energy source uses moving air currents to generate electricity through turbines?

  • A Solar energy
  • B Wind energy
  • C Hydropower
  • D Biomass energy
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Correct Answer: Option B — Wind energy
Explanation: Wind energy uses moving air currents to rotate large turbine blades which drive generators to produce electricity offering a clean and increasingly cost effective renewable power source.
40
Easy fpsc ppsc nts

Which renewable energy source harnesses sunlight directly to generate electricity?

  • A Wind energy
  • B Solar energy
  • C Hydropower
  • D Geothermal energy
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Correct Answer: Option B — Solar energy
Explanation: Solar energy harnesses sunlight directly using photovoltaic cells to generate electricity providing a clean and renewable alternative to fossil fuel based power generation.