Which environmental change played a key role in making human survival easier and bringing about the neolithic age? a. decline in global sea level b. end of the ice age c. extinction of mammoths d. increase in cave formations

Use the formula: (n-2)×180, where n is the number of sides(18-2)×180= 28800, now this is the full exterior angle of 18-gon so you divide it by 18.28800÷18=160

It's the

1) which is an example of active listening during a formal discussion the answer is d. responding to questions this proves that you were actively listening to the conversation being held in the discussion and that you also know about the topic being discussed2) finding the right balance in a formal discussion is primarily the answer is a. being activeyou want to actively take part of the discussion and prove that you are focused. able to understand what others are saying and make your own input