What are positive and negative impacts of living near a plain and desert ?

The plains tend to be very easy for early settlements to bring about agriculture, mobility, and mild weather conditions that helps early civilization grow. The negative impact of most plains come from it's lack of ability to trade easily in later generations, without water access.

answer; ///i believe the correct answer is (b) the writing of the ancients who lived in india after the indus valley inhabitants died out;

more than 1 person for sure