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 sum of the first five composite numbers?
A. 17
B. 25
C. 37
D. 45
Correct Answer: C (37)
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What is the area of a square whose length of one side is 8.9 m?
A. 79.21 m²
B. 39.605 m²
C. 158.84 m²
D. 87.8 m²
Correct Answer: A (79.21 m²)
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