Some researchers believe that the higher numbers of single-parent families is a key reason for the increased rates of violent crime in the usa compared to 40 or 50 years ago. on the other hand, it is true that there are many differences between single-parent and two-parent families, any one or combination of which may explain these increases in violent crime. this is an issue that addresses the principle of

The principle of correlation v causation.

Explanation:

This is an issue that addresses the principle of correlation v causation. Correlation between two events is the relationship between two variables. The dependent variable and the independent variable. In a correlation, both variables are related. An increase in one variable causes the increase or the decrease of the other one. In causation, the relationship between the variables is of cause and effect. One event is caused by the other one. Although researchers believe that the higher numbers of single-parent families are a key reason for the increased rates of violent crime in the USA compared to 40 or 50 years ago, these variables may be correlated but one may not be the cause of the other one.

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

the aksumite empire was an ancient kingdom located in what is now northern ethiopia from the period of 100 ad to 940 ad. its capital was the city of aksum. the kingdom established itself as one of the 4 great powers at its time, along with persia, rome, and china.

the kingdom was rich in goods like gold, iron, and salt. it established strong commercial ties with the regions governed by rome, egypt, and persia (arabia). aksum was a key location in this commercial network. trade was also facilitated with the introduction of the aksumite currency.