Answer:
Industry data show that 59% of HFC 134a ever produced has already been release into the atmosphere (along with 80% of the main HCFC in the market, HCFC 22). According to recent investigations, about 60% of HFC<u> emissions arise from routine leaks from refrigeration and air conditioning.</u>
Explanation:
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The cell membrane is made of a protein layer that is sandwiched between 2 phospolipid layers. It has pores that allow selective passage of substances in and out of the cell.
A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another. ... Food webs consist of many interconnected food chains and are more realistic representation of consumption relationships in ecosystems.
Answer:
DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules.
Explanation:
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