Mutation. endangerment and possible* extinction
(*= not likely)
Hope i help.
The factors were latitude, elevation, nearby water, and ocean curents. All of these factors affect earth's climate.
You can infer there is a big population of sierra leone
As of 2013 the population of sierra leone is 6.092 million and is increasing.
Stomata is present at epidermis of the leaves lenticels are present at bark