“The stratosphere is the second major layer of Earth's atmosphere, just above the troposphere...Stratosphere
“The Planck constant (denoted h), also called Planck's constant, is a physical constant used to...Planck constant
“A magnetometer is a scientific instrument used to measure the strength and/or direction of the...Magnetometer
“Saturn has the most extensive planetary ring system of any planet in the Solar System. The rings...Rings of Saturn
“Hollow Earth is a belief that the planet Earth has a hollow interior and, possibly, a habitable...Hollow earth
“Hydrogen peroxide (H2O2) is a very pale blue liquid, slightly more viscous than water, that...Hydrogen peroxide
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