Using resources

• Many of the Earth's resources are finite
• Chemists have a role in estimating the amount of reserves remaining and ensuring that the use of resources is sustainable
• All humans rely on safe drinking water
• Salt can be removed from sea water to make it safe to drink
• Waste water must be treated before being released into the environment
• Life cycle assessments can evaluate the environmental impact of a product
• Many products are recycled to lessen environmental impact
• Modern metal extraction can reduce the impact on the environment
• Understanding how to approach exam questions helps to boost exam performance
• Question types will include multiple choice, structured, mathematical and practical questions