Final answer:
Implementing eco-friendly practices, using energy-efficient equipment, and having a loyalty program are ways for a car wash business to be sustainable.
Step-by-step explanation:
Ways for a Car Wash Business to be Sustainable
 A car wash business can be sustainable by implementing various practices:
 - Use of eco-friendly cleaning products and water management techniques, such as recycling and reusing water.
  - Investing in energy-efficient equipment and technology, such as low-flow nozzles and LED lighting.
  - Implementing a loyalty program to incentivize repeat customers and reduce marketing costs.
  
By incorporating these sustainable practices, a car wash business can minimize its environmental impact, reduce costs, and attract eco-conscious customers.
Learn more about Sustainability in a car wash business