People living nearby steep cliffs can impact them in
different ways, the people nearby will affect them into having a decrease area
available to grow crops as it is dangerous to even grow crops in areas like it,
another thing is, there will be an increase of landslide hazard as they are in
a steep cliff. Having steep cliffs are dangerous and will only cause them a
disadvantage.
The answer is A. macromolecules
There are 4 types of macromolecules; lipids, proteins, carbs and nucleic acids
Only once because the DNA replication initiation is tightly linked to cell cycle progression,ensuring that replication occur only once per cycle