Hi guys I need help with those questions can somebody help me please am doing a science fair project the problem is CAN PLANTS STOP SOIL EROSION?

what can we put a title for this problem
what is the hypothesis for this problem

please help

The images show two species of tree frogs in a particular region. the gray tree frogs are adapted to the trees of the woodlands, while the green tree frogs can survive in woodlands or grasslands. the gray frog was abundant in the woodlands. because of climatic changes, most of the trees in the region died, and the woodlands changed to grasslands. in such a case, the . the gray tree frog is closely related to the green tree frog genetically, but they have different mating calls. this suggests that speciation occurred because of .