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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: Absorb water and nutrients
The roots of plants anchor them in the soil and absorb water and essential nutrients for growth.
Answer: Red blood cells
Red blood cells contain hemoglobin, which binds to oxygen and carries it from the lungs to the rest of the body.
Answer: Solar energy
Solar energy is a renewable resource because it is naturally replenished and does not run out.
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Answer: Ionic bond
In ionic bonding, electrons are transferred from one atom to another, resulting in oppositely charged ions that are attracted to each other.
Answer: Circulate oxygen
The circulatory systems primary function is to transport oxygen and nutrients to cells and remove waste products like carbon dioxide.
Answer: Carry out respiration
Mitochondria are the powerhouses of the cell, converting glucose and oxygen into ATP, the energy currency of the cell.
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Answer: Oxygen
Oxygen makes up around 46% of the Earths crust by weight, primarily found in minerals like silicates.
Answer: Proton
Protons are positively charged particles located in the nucleus of an atom.
Answer: Evaporation
Evaporation is the process by which a liquid turns into a gas, often due to heat energy.
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Answer: Hertz
Frequency is measured in Hertz (Hz), which represents the number of cycles per second of a periodic wave.
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