Under which condition, with or without human interference, did your pack do better? Why do you think that?

Favorable conditions.

Explanation:

Under favorable condition, with or without human interference, our pack do better because every thing needs good and favorable environmental conditions to perform their activities. If the human interfere in order to provide favorable conditions so this interference is necessary but if human interference causes unfavorable conditions for the pack so avoid this interference.

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.