Answer:
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Belonging to the large family of alcohols, propylene glycol is a chemical element widely used by the food industry thanks to its recognized emulsifying properties. It is referable to its acronym E1520. This colorless, low volatile and soluble diol is also used in many other industries. Pharmaceutical, cosmetic, aeronautic, textile industries ... Propylene glycol is involved in the composition of many polymers such as polyester. Non-toxic when inhaled, propylene glycol is used in electronic cigarette filling fluid to produce an aerosol effect comparable to that of smoke.
With respect to polypropylene glycol, each condensation of propylene glycol causes a loss of a water molecule
C3H8O2 + C3H8O2 + C3H8O2 ==> C9H20O4 + 2H2O
Patterns of global migration and remittances have shifted in recent decades, even as both the number of immigrants and the amount of money they send home have grown, according to a new Pew Research Center analysis of data from the United Nations and the World Bank.
There are concerns that genetic engineering<span> may potentially damage </span>biodiversity<span> as wild varieties crossbreed with </span>genetically<span> engineered ones, particularly in the field of agriculture.</span>
Answer: <em>D. They evolved from the same ancestor.
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Explanation:
In the event that at least two species share a one of a kind physical characteristic they may all have acquired this quality from a typical predecessor.
Attributes that are shared because of basic family are homologous structures. For instance, the forelimbs of whales, people, and birds appear to be unique outwardly on the grounds that they're adjusted to work in various conditions.
Nonetheless, on the off chance that you take a gander at the bone structure of the forelimbs, the association of the bones is comparative crosswise over species.
