Because humans affect how and where fish live by draining wetlands (on which fish rely for food, protection, and purifying water);
(humans; affect; how and where fish live by draining wetlands (on which fish rely for food, protection, and purifying water) (which fish; rely; for food, protection, and purifying water) (fish; live; ) Context(fish live,List([36, 45))):(fish; live by draining; wetlands)
fish live,List([36, 45))
humans which fish fish fish
affect rely live live by draining
how and where fish live by draining wetlands (on which fish rely for food, protection, and purifying water
for food, protection, and purifying water
wetlands