Passage Summary: Environmentalists have different reasons for wanting to protect nature: some think it's bad for the economy to lose natural resources, while others think nature is valuable regardless of money.

Reasoning: Some environmentalists argue against destroying nature because of lost economic benefits, while others argue nature has intrinsic value that outweighs any economic cost-benefit analysis.

Analysis: Since this is a 'Must be True' question based on a fact set, we need to find a synthesis of the provided information. We have two distinct groups: the 'economic benefit' group and the 'intrinsic value' group. The correct answer will likely be a conservative statement that reflects the existence of these differing motivations. Focus on an answer that correctly identifies that for at least some environmentalists, economic factors are not the primary reason for preservation.