Fiber Optics & Lasers MCQs With Answer
Which principle does fiber optics work on? a) Diffraction b) Reflection c) Total internal reflection d) Refraction What is the core of an optical fiber…
Read More »Fossil Fuels & Their Impact MCQs With Answer
Which of the following is a fossil fuel? a) Uranium b) Wind energy c) Natural gas d) Biomass What is the primary component of natural…
Read More »Future Energy Solutions & Green Technologies MCQs With Answer
Which of the following is considered a renewable energy source? a) Coal b) Natural gas c) Solar energy d) Diesel Which technology is used to…
Read More »Greenhouse Effect & Global Warming MCQs With Answer
The greenhouse effect is caused by the trapping of: a) Oxygen in the atmosphere b) Sunlight in the ocean c) Heat by greenhouse gases d)…
Read More »Household Chemicals & Their Uses MCQs With Answer
Baking soda (sodium bicarbonate) is commonly used in households as a: a) Disinfectant b) Bleaching agent c) Cleaning agent and deodorizer d) Metal polish Which…
Read More »Human Genetics & DNA Technology MCQs With Answer
Which molecule carries genetic information in humans? a) RNA b) DNA c) Protein d) Lipid What is the shape of the DNA molecule? a) Single…
Read More »Human Organ Systems MCQs With Answer
The human body consists of how many major organ systems? a) 8 b) 10 c) 11 d) 13 Which organ system is responsible for transporting…
Read More »Immunity & Vaccination MCQs With Answer
The first vaccine was developed by Edward Jenner to protect against which disease? a) Smallpox b) Measles c) Polio d) Influenza Which type of immunity…
Read More »Internet, Cybersecurity & Data Science MCQs With Answer
The primary function of a firewall in cybersecurity is to: a) Block viruses b) Monitor network traffic c) Prevent unauthorized access d) Encrypt data Which…
Read More »Introduction to Everyday Science MCQs With Answer
The boiling point of water at sea level is: a) 90°C b) 100°C c) 110°C d) 120°C Which gas do plants absorb during photosynthesis? a)…
Read More »Laws of Thermodynamics MCQs With Answer
The First Law of Thermodynamics is also known as: a) Law of Entropy b) Law of Conservation of Energy c) Law of Absolute Zero d)…
Read More »Layers of the Earth MCQs With Answer
The outermost layer of the Earth is called: a) Mantle b) Inner core c) Crust d) Outer core Which layer of the Earth is composed…
Read More »