Choose the most appropriate word from the options given below to complete the…

Answer: conserve — means to protect and use resources carefully.

• conserve: To protect from loss or waste and to use sparingly; this verb commonly collocates with 'natural resources' and exactly expresses the idea of managing them wisely.

• uphold: Means to maintain or support a principle or law; it does not convey the idea of protecting or saving resources.

• restrain: Means to hold back or limit; we restrain consumption or behaviour, not the resources themselves, so it is not the right fit here.

• cherish: Means to care for fondly or value emotionally; while positive, it is usually used for feelings or memories, not for the practical idea of managing natural resources.

Complete sentence: If we manage to conserve our natural resources, we would leave a better planet for our children.