- A lack of something that a living thing requires prevents the survival of that living thing
- A plant is a kind of living thing
- So, a lack of something that a plant requires prevents the survival of that plant

- A lack of something that a plant requires prevents the survival of that plant
- Plants require water for survival
- So, a lack of water prevents the survival of plants

- A lack of water prevents the survival of plants
- A desert environment is low in availability of water
- Hence, a lack of water prevents the survival of plants in the desert

- A lack of water prevents the survival of plants in the desert
- Moisture is a form of water
- Therefore, a lack of moisture prevents the survival of plants in the desert

So, a lack of moisture prevents the survival of plants in the desert
Question
Which environmental factor would most likely prevent an orange tree from surviving in the desert?

Context
- Moisture is a form of water 
- Plants require water for survival 
- A lack of something that a living thing requires prevents the survival of that living thing 
- A desert environment is low in availability of water 
- A plant is a kind of living thing