Which of The following are challenges to implementing sustainable farming practices? Select two correct answers. a. increased need for fertilizer
b. lack of pollinating insects
c. higher initial costs
d. increased erosion
e. increase labor costs

cuz some people don't have enough food. that's why we need more ppl to donate food to the hungry.

answer; /// the shaft of the hair consists of dead cells;

the species living around the vents are especially good at dispersal.  

deep-sea vent originates on the floor of the ocean when seawater circulates through hot volcanic rocks, usually situated where the new oceanic crust is being produced.  

biological dispersal refers to the movement of species from their location of birth to their site of breeding, or from breeding site to another. similarly, the oceanic dispersal refers to the movement of the species from one land mass to another by sea crossing.