The first stage is ignited at launch and burns through the powered ascent until its propellants are exhausted.
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Volcanic rock (often shortened to volcanics in scientific contexts) is a rock formed from lava erupted from a volcano. ... Volcanic rocks and sediment that form from magma erupted into the air are called "volcaniclastics," and these are technically sedimentary rocks.
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The amount of fuel used to heat and cool your home can be reduced by good insulation.
There are three mountains: the Sierra Madre Occidental, the Sierra Madre Oriental, and Sierra Madre del Sur.
