- Irrigation causes water levels to decrease
- As the amount of water in a body of water decreases , the water levels will decrease
- So, irrigation causes the amount of water in a body of water to decrease

- Irrigation causes the amount of water in a body of water to decrease
- A lake is a kind of body of water
- Therefore, irrigation can cause the amount of water in a lake to decrease

- The volume of a substance describes the amount of that substance
- Matter is a kind of substance
- Therefore, the volume of matter describes the amount of that matter

- The volume of matter describes the amount of that matter
- Volume is a property of matter
- Therefore, volume is a property of matter that describes the amount of that matter

- A body of water contains water
- A lake is a kind of body of water
- Therefore, a lake contains water

- A lake contains water
- Water is a kind of matter
- Hence, water in a lake is a kind of matter

- Volume is a property of matter that describes the amount of that matter
- Water in a lake is a kind of matter
- Therefore, the volume of a lake describes the amount of water in that lake

- Irrigation can cause the amount of water in a lake to decrease
- The volume of a lake describes the amount of water in that lake
- Hence, irrigation can cause the volume of a lake to decrease

Hence, irrigation can cause the volume of a lake to decrease
Question
A lake has been used for more than a century to irrigate crops. How has this practice most likely affected this resource?

Context
- A body of water contains water 
- The volume of a substance describes the amount of that substance 
- Water is a kind of matter 
- Irrigation causes water levels to decrease 
- As the amount of water in a body of water decreases , the water levels will decrease 
- Volume is a property of matter 
- Matter is a kind of substance 
- A lake is a kind of body of water