4. How does this adaptation help improve the lives of people living in this area

for a different answer set the answer would be because the oxygen in the water had depleted (apex)

in tropical forests it typically is hot with a lot of rain. when what is hot, it starts to evaporate and turn into water vapor.

the cover letter for a job search includes the skills one has for the particular job. including a cover letter is always a good idea, as it describes the ability to perform a task, and the employer can easily fetch the intention of the job you want to do.  

the cover letter is very important to be included in the job search document. hence, i strongly with the statement.  

answercalled plucking;