Tracheae to distribute oxygen
Answer:
The amount of energy at each trophic level decreases as it moves through an ecosystem. As little as 10 percent of the energy at any trophic level is transferred to the next level; the rest is lost largely through metabolic processes as heat.
Explanation:
After A Natural Disaster , Population Usually Decreases Due To Death Or People Fleeing From Their Home .
people do not use water correctly and waste it