Answer:
Environmental factors include factors in the surroundings that can have an impact on humans. This includes climate, temperature, population density, pollutants, etc.
Explanation:
A way that scientists can analyze and interpret data to identify the potential environmental factors is by analyzing the distribution or variation in traits across a population.
Across a population, environmental factors might play a role with regards to any of the factors including distribution by allowing for variations to occur in these traits.
These variations can then be studied and analyzed.
The other options are determined by genetic factors.
