If an Arctic polar bear is transferred to a zoo in tropical Singapore, it will not be able to survive. What could be the reason for this?

An Arctic polar bear could not be able to survive living in singapore because of the climate or weather which is different from wich an arctic polar bear usually lives in

Explanation:

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.