Answer:
land
Step-by-step explanation:
Vertical farming is a modern method of farming or growing crops and vegetation. It allows growing of crops in stacked layers which is vertical. The crops are grown in a well equipment controlled-environment set up.
Vertical farming is done where there is fewer land resources as well as water resources. The main is to increase the crop yield with a very less use of land resources. But it requires more energy than the conventional energy.