Class 7 Science MCQs - Chapter 8
Energy Resources: Science Multiple Choice Questions (MCQ) PDF Download - 2
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The MCQs: When animals and plants are rotten in the absence of air, there produces a gas called; "Energy Resources: Science" App (Android, iOS) with answers: Carbon dioxide; Oxygen; Bio gas; Methane; to study online certification courses. Practice Renewable Energy Resources MCQ Questions, download Apple e-Book (Free Sample) for elementary school graduation certificate.
Energy Resources Science MCQs with Answers PDF Download: Quiz 2
When animals and plants are rotten in the absence of air, there produces a gas called
- oxygen
- carbon dioxide
- bio gas
- methane
Black painted panels which are hanged at roofs to trap heat and energy from sun, are
- solar cells
- solar heater
- solar furnace
- solar battery
Earth emits heat by eruptions of
- volcano
- hot springs
- geysers
- all of them
Plants utilize water, carbon dioxide and light to produce their own food by
- respiration
- photosynthesis
- circulation
- transportation
Plants material and waste from living things are regarded as
- fossils fuel
- bio mass
- coal
- crude
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