1. What are the geological consequences of large changes in glaciers? 2. What are the biological consequences of large changes in glaciers?
3. What are the economic consequences of large changes in glaciers?
4. What is causing large-scale changes in glaciers?
5. What can be done to slow these changes?

Best ways to slow down the changes in glaciers would be by reducing greenhouse effects and global warming.

Explanation:

Large changes in glaciers would affect the flow of the rivers. If large amount of glaciers melt, it would cause floods and overflow of downstream rivers which would subsequently destroy crops, soil and lives.Glaciers provide rivers with cold temperature water which are very important for some aquatic species for survival. With glaciers melting at large scale, many species dependent on glacier cold water would not survive.Loss of crops and soil fertility near river basins due to floods caused by melting of glaciers would affect the economic condition of the farmers.Greenhouse gas is causing large-scale changes in glaciers.The best ways to slow down the changes in glaciers would be by reducing greenhouse effects and global warming.

I'm not sure but it could be c ( not a 100% sure )