Forty percent of all children born in the united states are born to parents who aren’t married, up from 28 percent in 1990. this trend is closely tied to:

Forty percent of all children born in the United States are born to parents who aren’t married, up from 28 percent in 1990. This trend is closely tied to: the decline of marriage.

Explanation:

Marriage is an institution that fotifies families and gives children a good environment to develop as good citizens.

no the answer is c only objects touching the earth's surface can be acted upon by an outside force