How did aqueducts contribute to the growth of the Roman Empire? O They enabled trade routes to reach faraway lands.
O They were used to protect against natural disasters.
O They were used to help the military conquer new lands.
O They enabled water to reach the cities for proper sanitation.

the money supply is the total amount of money available in the economy. how do changes in the money supply affect people and businesses?

intimacy, passion and commitment are the components of a interpersonal relationship emphasized in the triangular theory of love by robert sternberg.

the triangular theory of love says love can be comprehend as this componest form the vertices of a triangle.  

intimacy relates to feelings such as of closeness and connection;

passion relates the drives that brings people together, as physical attraction.

commitment relates to the being in a long-term relationship.

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.