Answer:
b warm wet air rises and punches cold dry air down causing the air to spin
Selectivity permeable membrane and a scaffold for biochemical activity
Ok, I'm not fully sure but answer B sound right, so I think it's right
For agricultural uses. For example: country or area with low precipitation and high droughts will starve if they don't have plants that can survive the harsh conditions such as genetically modified crops being able to take in less water than non genetically modified crops.
