Question : What powers the Earth's internal heat engine?
Option 1: Solar Energy
Option 2: Volcanoes
Option 3: Radioactive energy
Option 4: Tides
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Correct Answer: Radioactive energy
Solution : The correct answer is Radioactive energy.
The planet's internal heat engine is fuelled by residual heat from Earth's origin as well as heat from radioactive material decay. Radioactive atoms have energy that they spontaneously release as high-energy subatomic particles or electromagnetic waves.
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Question : What are the main energy sources for Earth's internal heat engine?
Question : The solar radiation coming to Earth is called
Question : The process of photosynthesis involves conversion of
Question : In which form is the supplied heat energy stored during change in temperature of substance?
Question : Select the option that expresses the given sentence in active voice.
Most of Earth's surface is covered by water.
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