A warm air does always rise and cold air falls
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In soil erosion, the soil is carried away from by the wind or water from the top layer of the ground. Soil formation is making soil. It can be by the deposition of the soil from water or wind
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DNA is functional is the transmission of genetic information. It forms as a media for long-term storage. RNA is functional is the transmission of the genetic code that is necessary for the protein creation from the nucleus to the ribosome. The DNA is a double-stranded molecule that has a long chain of nucleotides.