What is a possible effect of population growth on the environment?

Correct answer: Resource use and waste may increase

The direct answer is A: resource use and waste may increase. A larger population may need more water, food, energy, land, housing, transport, and other goods. Producing and using these things can create more solid waste, sewage, and emissions. If these are not managed properly, air, water, and soil pollution may increase. Option A is correct because it describes a possible environmental pressure, not an unavoidable result in every place. Option B is wrong because forests are limited ecosystems and may be reduced when land is cleared. Option C is wrong because people continue to need water, and a larger population generally increases total demand. Option D is wrong because pollution does not automatically become zero; careful planning and waste management can reduce it. Memory cue: more people often mean greater demand, and greater demand can create more waste unless resources are managed wisely.