I think the Maths is more important .
Answer:
c. predictive validity
Explanation:
In research, the term predictive validity refers to the fact that a score in a test or the performance on a task is related to the performance in another test or task that is evaluated in the future after the first test. So, the first test/criterion will likely predict how the person will do in the second one.
In this example students take a college entrance exam and it's been observed that the ones who do well in them, do well in their first year of college. We can see that <u>the score in the entrance exam will likely predict how the students will do during their first year of college</u>. Therefore, these exams have predictive validity.
DESERTIFICATION IS THE SPREAD OF DESERT AREA, AND IF PEOPLE WANT TO LIMIT THE EFFECT OF IT, SOME WAYS ARE TO STOP CUTTING DOWN TREES. DEFORESTATION IS A PART OF THE REASON THAT DESERTIFICATION TAKES PLACE. ANOTHER WAY,IS FOR PEOPLE TO STOP OVERGRAZING AND SLASH AND BURN.
(HOPE THIS HELPS)