<span>Office Group. is the correct answer.
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Answer:
Feudalism declined as kings became richer and more powerful.
Explanation:
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)