Multicellular and eukaryotic
Car exhaust, industrial emissions and solvent vapors are all sources of bad ozone layers because they unleash pollutants into the atmosphere which in turn harm the ozone layer.
Parts of a cell, such as nucleus, chromosomes, chloroplast ( if it was a plant), etc..
All engineers solve problems related to any field. so the answer is option A.
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Answer:
Consider substances that can easily diffuse through the lipid bilayer of the cell membrane, such as the gases oxygen (O2) and CO2. O2 generally diffuses into cells because it is more concentrated outside of them, and CO2 typically diffuses out of cells because it is more concentrated inside of them.