u have to mark how high they are im guessing try that
If the mountain in terms of isostatic adjustment following a period of significant erosion the continental crust underneath will be uplifted. Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
Sinkholes are common where the rock below the land surface is limestone, carbonate rock, salt beds, or rocks that can naturally be dissolved by groundwater circulating through them. As the rock dissolves, spaces and caverns develop underground.
Sinkholes are formed when the land surface above collapses or sinks into the cavities or when surface material is carried downward into the voids. Drought, along with resulting high groundwater withdrawals, can make conditions favorable for sinkholes to form.
I think the two sources would be drip irrigation which is like a river, lake, groundwater, etc... The second source could be is making a new irragation system that could deliver water faster.