Determine which of the following is different from the list of the components of the ecosystem. Encircle one that is different from the rest.

Example: sun FISH water
Explanation: fish is biotic while sun and water are abiotic.

Abiotic vs Biotic
1. air ,fruit ,flower
2. oxygen ,bacteria ,soil
3. mushroom , cloud ,human
4. car ,house ,dog
5.rock ,tree ,dead plant