What was the relationship among human foragers and the environment/nature, and how was it different from our relationships to other humans today and to our environment?
in relation to "this fleeting world"

The relationship between the human foragers and the environment was much different than the one of the modern times. The foragers where directly dependent on the environment for their survival. They were not producing anything, so they were using the environment to get food and all the resources they needed. Nowadays, the relationship between the humans and the environment is much different, as most of the humans are directly dependent on the environment for the survival. This has led to have much less appreciation of it and very often even destroying it. The humans' relationship with the environment nowadays is much more recreational, scientific, or to use it for their further development.

the answer is fifth.