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Perhaps the first true rockets were accidents. In the first century A.D., the Chinese reportedly had a simple form of gunpowder made from saltpeter, sulfur, and charcoal dust. To create explosions during religous festivals, they filled bamboo tubes with a mixture and tossed them into fires. ... The true rocket was born.
source NASA
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Inner planets orbit the Sun at higher speed than outer planets.
Earth is slightly closer to the Sun on one side of its orbit than on the other side.
Milankovitch cycles is the correct term for changes in the elliptical shape of Earth’s orbit every 100,000 years.
Milankovitch cycles are the various influences of the earth's movements on its climate over thousands of years. There are three dominant Milankovitch cycles which are eccentricity, axial tilt, and precession, that combines to affect the location of solar energy around the earth, seasonality, and eventually influence climatic patterns.
<span>False. Any area that is able to effectively absorb carbon dioxide from the atmosphere can be considered a carbon sink. Some other examples can include farms, oceans, and savannas can fit under these definitions. When the land or water is able to take in more CO2 than it takes out, it can become a sink.</span>
The Abyssal Zone
The abyssal zone or abyssopelagic zone is a layer of the pelagic zone of the ocean. "Abyss" derives from the Greek word ἄβυσσος, meaning bottomless. At depths of 3,000 to 6,000 metres (9,800 to 19,700 ft), this zone remains in perpetual darkness.