Examlex
Which of the following is true of America's millionaires?
Energy Quality
A measure of an energy source's ability to do useful work; high-quality energy can be converted to work with high efficiency.
Sunlight
is the natural light of the sun, essential for photosynthesis in plants and influencing Earth's climate and weather patterns.
Electromagnetic Radiation
A form of energy that is propagated through space or through a material medium in the form of electromagnetic waves, such as light, radio waves, and X-rays.
Ultraviolet Waves
Electromagnetic waves with wavelengths shorter than visible light, harmful to skin and eyes but essential for Vitamin D synthesis in humans.
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