Which two habitats lack trees, shrubs, and liquid water?
A. Swamp and tundra
O
O
B. Desert and tundra
O
C. Grassland and forest
O
D. Desert and beach

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.

i think that is new experiments yield untrustworthy data and should be carefully considered, because you don't know what will happen with the experiments.