Which of the following best characterizes population growth's effect on the environment?
neutral
nonexistent
positive
negative

The phrase that revels setting is whisper because it shows what he is doing .

  i think you forgot to put the options but if your reffering to this question then your answer will be "b"  a. add "to" to the base form to create an adjective.b. when the subject of a sentence is singular, add "–s" to the base form.c. add "–ed" to irregular base forms to form the past participle.d. do not use a base form with plural subjects