Class 7 Science MCQs - Chapter 12
Heat Transfer Trivia Questions and Answers PDF - 12
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Heat Transfer Questions & Answers PDF Download: MCQ Quiz 12
MCQ 56: For transferring of heat, conduction and convection need a
- vacuum
- space
- sphere
- medium
MCQ 57: The inner two walls of the flask are made of
- steel
- metalloid
- glass
- metal
MCQ 58: The excessive loss of heat is also harmful for
- environment
- surroundings
- trees and forests
- glaciers
MCQ 59: Global warming causes
- extreme weather and climate changes
- extreme cold in summer
- skin cancers
- skin burns
MCQ 60: If we melt magnesium, it would start to give
- yellow glow
- white light
- orange glow
- blue shine
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