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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: Stomach
The stomach is an organ in the digestive system that helps break down food using acids and enzymes.
Answer: Nuclear energy
Nuclear energy is stored in the nucleus of an atom and released during nuclear reactions like fission or fusion.
Answer: Defend against infections
The lymphatic system plays a crucial role in defending the body against infections by filtering lymph and housing white blood cells.
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Answer: Catalyst
A catalyst is a substance that increases the rate of a chemical reaction without being consumed in the process.
Answer: Hypothalamus
The hypothalamus regulates body temperature, hunger, thirst and other vital functions.
Answer: The Sun
The Sun is the primary source of energy that drives weather systems on Earth by heating the atmosphere and oceans.
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Answer: Atom
An atom is the smallest particle of an element that retains the chemical properties of that element.
Answer: Transpiration
Transpiration is the process by which water is absorbed by plant roots, travels through the plant and is released as vapor through pores in the leaves.
Answer: Melting of ice
The melting of ice is a physical change as it changes from solid to liquid without altering its chemical composition.
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Answer: NH3
Ammonia has the chemical formula NH3 and is commonly used in fertilizers and cleaning products.
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