Douglas McCauley argues we should protect natural resources by valuing: a. Their cultural significance to humans. b. Their structural worth. c. Their ability to remove air pollution. d. Their carbon storage capacity.

A. Their cultural significance to humans

Explanation: Natural resources are popularly regarded as resources which exists by nature. Natural resources may be considered as resources which occurs without the actions or work of human. They may include sunlight, rain, wildlife natural resources beneath the surface gold, crude oil, diamond and so on.

There are variations in the distribution of natural resources from a geographic location or region to another as can be observed in the seasonal weather pattern, wildlife features and mineral resources available in the different regions of the world.

Protection of natural resources helps in maintaining a healthy and profitable environment. Most importantly it helps maintain our cultural value by helping us understand our past.

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