Answer:
on crops and animals (more info below)
Step-by-step explanation:
the dust bowl affected many crops. They were unable to grow because all the topsoil was blown away. Animals were found dead everywhere, with two inches of dirt coating their stomach and lungs. Most cattle died of lung diseases, as did people. In a land where 12% of the U.S. animal population resides, most became extinct in that region.
hope I helped!