Question

the acronym hippo is used to help us remember the reasons species become endangered and/or go extinct. what do the ps in hippo stand for?
pollution and human population
precautions

Explanation:

The acronym HIPPO stands for Habitat loss, Invasive species, Pollution, Human population, and Overharvesting (or Overexploitation). So the two P's in HIPPO stand for Pollution and (Human) Population (the second P). The option "Pollution and human Population" matches this, while "Precautions" is not related to the reasons for species endangerment/extinction.

Answer:

A. Pollution and human Population