Answer:
1. Oxygen
2. Vitamins and minerals
Explanation:
Environment has given us various essential resources to sustain human life on planet earth
1. Oxygen -
Oxygen is very essential for survival of human. A person can live without food and water for some time and not without air. Breathing also provides energy for all our metabolic processes
2. Vitamins and Minerals
Both Vitamins and minerals are natural element which are very essential for regulating the growth, functioning and health of our body. These element cannot be produced by man.
