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Looking for MCQs? You're in the right place! Whether you're preparing for competitive exams, school boards or just aiming to improve your knowledge, we offer MCQs for all levels and subjects.
Answer: Mercury
Mercury is commonly used in thermometers due to its ability to expand and contract predictably with temperature changes.
Answer: White blood cells
White blood cells play a crucial role in the immune system by attacking pathogens and foreign invaders.
Answer: Absorb water
The large intestines primary function is to absorb water and electrolytes from undigested food, forming feces.
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Answer: 300,000 km/s
The speed of light in a vacuum is approximately 300,000 kilometers per second.
Answer: Oxygen
Oxygen is used in cellular respiration to produce energy in the form of ATP in living organisms.
Answer: The Sun
The Sun is the primary source of energy for the Earth, providing light and heat that sustain life and weather systems.
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Answer: To transport oxygen
The circulatory system transports oxygen, nutrients and hormones throughout the body, while also removing waste products.
Answer: 100?C
Water boils at 100?C at sea level under standard atmospheric pressure (1 atm).
Answer: Albert Einstein
Albert Einstein developed the theory of general relativity, revolutionizing the understanding of gravity.
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Answer: Leaf
Photosynthesis mainly occurs in the leaves of plants, where chloroplasts absorb sunlight and convert it into energy.
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