Radiation is the transfer of heat through __________ without the need for a material medium
A. Electromagnetic waves
B. Mechanical waves
C. Seismological waves
D. Chemical reactions
Correct Answer: A (Electromagnetic waves)
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The heat transfer from a hotter place to a colder place with or without having a material medium in between is called:
A. Conduction
B. Convection
C. Radiation
D. Advection
Correct Answer: C (Radiation)
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Solar Ultraviolet radiation is absorbed by:
A. Ozone layer
B. Carbon dioxide
C. Water vapor
D. Methane
Correct Answer: A (Ozone layer)
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What is the largest organ of the Human Body?
A. Liver
B. Brain
C. Skin
D. Bone
Correct Answer: C (Skin)
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What is the Unit of the Human Nervous System?
A. Muscle
B. Neuron
C. Blood cell
D. Tissue
Correct Answer: B (Neuron)
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A celestial body revolves around a planet is known as:
A. Cornets
B. Meteors
C. Moon
D. Asteroids
Correct Answer: C (Moon)
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