Archaeology characteristically focuses on ecological and social factors, often emphasizing relations with the environment and subsistence economy

Processual Archaeology.

Explanation:

The processual archaeology believes that cultural and historical notions of culture were the results of behavioral outcomes of a population's ability to adaptate to specific enviroments and conditions. As the exercise states, this type of achaeology focuses on ecological and social factors, often emphasizing relations with the environment and subsistence economy.

the median of the data is 4.

step-by-step explanation:

the median means the middle number of a given number.

to decide which one is the median, arrange in ascending or descending order. but sometimes, you may find two(2) number in the middle, but it's easy, just add them together and divide by 2.

so,   determine the median of the data. 2, 3, 3, 4, 5, 7, 9

it is already arranged, count 3 times forward and 3 backward and the one left is your answer.

2,3,3,4,5,7,9

our answer is 4.

hope this !