Answer:
. Air, water, food, plants, animals, minerals, metals However, mountains, rivers, sea or forests are also resources but they do not have economic value
Step-by-step explanation:
For example, metals are gold, silver, copper or bronze have economic value; ... Any life form that lives within nature is a Biotic Resource, like humans, ... resource is that which is available in nature but has no life; like metals, rocks, and stones.