Without being able to look into the earth , a scientist would not be able to determine if this region has karst topography
true or false

Without being able to look into the Earth, a scientist would not be able to determine if this region has karst topography, is a false statement

Explanation:

Karst topography can be observed by looking into the earth’s external surface structures like barren rocky grounds, caves, underground rivers, sinkholes and other karst landscapes. Karst topography results due to erosion of limestone by the excavation of underground water. When rainwater erodes the soft rocks like limestone it begins to slowly dissolve in water. Over repeated erosion, only the rocky cliffs remain on the surface. When an underground river emerges from sinkholes in a karst landscape, the rocky remains form caves. So by studying these external surfaces itself, the scientist can determine if a region has karst topography

If its history of, then b) because a) implies only present day (now)