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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: Carbon dioxide
Carbon dioxide is a major greenhouse gas, contributing to the trapping of heat in the Earths atmosphere, leading to global warming.
Answer: Transport oxygen
Red blood cells transport oxygen from the lungs to body tissues and carry carbon dioxide back to the lungs for exhalation.
Answer: 7
Pure water has a neutral pH value of 7, meaning it is neither acidic nor basic.
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Answer: Transpiration
Transpiration is the process by which water vapor is lost from the leaves of plants to the atmosphere.
Answer: Wood burning
Wood burning is a chemical reaction in which new substances, such as ash and gases, are formed.
Answer: Au
Gold has the chemical symbol Au, derived from the Latin word aurum.
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Answer: Neon
Neon is a noble gas, which is chemically inert and does not readily form compounds.
Answer: Volt
The unit of electric potential difference is the Volt (V), representing the energy per unit charge.
Answer: Fungi
Fungi, including mushrooms and molds, are decomposers that break down dead organic material, recycling nutrients back into the ecosystem.
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Answer: Fight infections
White blood cells (leukocytes) are part of the immune system and protect the body from infections and diseases.
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