Answer: Sea level can rise by two different mechanisms with respect to climate change.
Explanation:
First, as the oceans warm due to an increasing global temperature, seawater expands—taking up more space in the ocean basin and causing a rise in water level.
Deforestation, loss of habitat and species, and sometimes climate change
Because it only support the planting of one main crop, meanwhile perennial system allow the planting of multiple crops
The basin system can only supported one type of crops because it really depended on nile river's annual flooding, which make it far Less effective than the Perennial system. So many people in modern times started to switch to Perennial system
