Answer:
Option A
Explanation:
Most of the human economic systems if not all operate with the human natural systems. Human economic system and natural systems almost dependent on one another in that they are linked by a network of interconnected processes; for example, human economic activity depend on natural, including a maintained system of primary productivity such as forests and agriculture etc.
Answer:A herbivorous duck
Explanation:A primary consumer is an organism that eats producers. Primary consumers are always herbivores.
When someone falls overboard, the action that skipper should take is to get flotation to the person and assign a spotter. <span>Have someone keep the victim in sight.</span>