What is the process where water carries materials from upper horizon down to lower levels

In the diagram below, ab and bc are tangent to o. what is the measure of

How does central place theory explain patterns in the size and distribution of cities?

According to a recent survey, the local government wants to classify people according to their income earning capacity. they want to do so in order to provide special facilities for the poor. who among the four individuals will be classified as poor? a. joseph earns $2.25 per day b. maria earns $1.50 per day c. rosita earns $2.00 per day d. tim earns $ 1.00 per day