Which of the following describes a major difference between the first and second waves of European imperialism

Only the second wave was motivated by a need for natural resources for industrialization.

Assuming that this is referring to the same list of options that was posted before with this question, the correct response would be the one having to do with the fact that the second wave was much more focussed on the extraction of resources from places like African and South America, since this was turning the "scramble for Africa".