Biotic factors are anything in a ecosystem that is living, was living, or is going to live.
From this we can conclude that the biotic factors are remains of dead organisms and flora and fauna.
Temperature and minerals in the soil are abiotic, meaning they will never live.
Answer:
air masses cooling as they increase in altitude and condense
Epidermal tissue as this is what makes up the lining
Troposphere
Stratosphere
Mesosphere
Thermosphere
Exosphere
