A Convex Lens is the type of lens used in magnifying glasses.
Transmembrane proteins are found in the plasma membrane. Hydrophilic regions are embedded
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within the membrane, and Hydrophobic regions project from both surfaces of the bilayer.
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Approximately 20-80% of the cell membrane is composed of lipids, the rest, is made up of protein. The lipid layer of the membrane gives it flexible and permeable characteristic. While the protein part assists in transport of molecules it needs to survive.<span>
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Answer:
okay so im guessing they want you to compare 2 different land resources. Say a water power station and a coal mine for example.
you could state the different effects the coal mine would have in comparison to the water station.
the coal mine say has pollution produced as a result in producing the energy. Whereas water has a lot better environmental value, but might cost more to produce energy
there is a lot of information of the 2 on google :)