Answer:
B
Explanation: You are trying to solve a medical problem by making and sketching a device therefore creating a solution
Pros:
more food is produced in mass amounts
is cheaper than non gmo food
easier and more efficient access
cons:
not as healthy/may contain chemicals
is more expensive
hard to access sometimes because is usually at fresh or local markets
Because the surface of a leaf is smooth if the surface was rough the water would get stuck but it is smooth so the water just rolls off