- A plant is a kind of organism
- Crops are a kind of edible plant for eating
- Therefore, a crop is a kind of organism

- A organisms require water for survival / to grow
- Water is a kind of natural resource
- Therefore, water is a kind of natural resource that organisms require to survive

- Water is a kind of natural resource that organisms require to survive
- When available resources decrease in an environment , organisms have to conserve those resources
- Hence, when water decreases in an environment, organisms have to conserve water to survive

- When water decreases in an environment, organisms have to conserve water to survive
- Drought is when available water decreases in an environment
- Therefore, organisms have to conserve water to survive in a drought

- A crop is a kind of organism
- Organisms have to conserve water to survive in a drought
- If a crop requires less water then that crop will survive in a drought
- Therefore, crops that survive in droughts can conserve water

- Crops that survive in droughts can conserve water
- Planting crops is a kind of activity
- Therefore, planting crops that survive in droughts is a kind of activity that conserves water

Therefore, planting crops that survive in droughts is a kind of activity that conserves water
[Question]Which of these activities is used to conserve water?
[Context]- When available resources decrease in an environment , organisms have to conserve those resources 
- Drought is when available water decreases in an environment 
- A plant is a kind of organism 
- If a crop requires less water then that crop will survive in a drought 
- Planting crops is a kind of activity 
- A organisms require water for survival / to grow 
- Water is a kind of natural resource 
- Crops are a kind of edible plant for eating