Which of the following questions can be answered scientifically?

1) Should we just let the river flow where it wants?

2) What can be done to stop erosion?

3) Is erosion control worth the financial costs?

4) Can planting cover crops reduce erosion?

Question

Which of the following questions can be answered scientifically?
	
1) 	Should we just let the river flow where it wants?
	
2) 	What can be done to stop erosion?
	
3) 	Is erosion control worth the financial costs?
	
4) 	Can planting cover crops reduce erosion?

javk · Answer

Well, in order for a question to be scientifically addressable, the answer needs to be based on facts rather than opinion, for example, the first question clearly requires an opinion and therefore cannot be answered scientifically. 

So which one do you think it is? Or, rather, which ones do you think require your opinion rather than facts?

anonymous · Answer

Which is the answer?

dominantvampire · Answer

mmm, what do you think?

dominantvampire · Answer

4) 	Can planting cover crops reduce erosion? it seems best to me.