Question

For what all things/ activities we can use overlay analysis?

• A. To check the effects of floods
• B. To find areas susceptible to wildfire
• C. To check the number of buildings in an area
• D. To check the deforestation rate in a region.

Answer 1

Answer: (A), (B), (D)

To check the deforestation rate in a region.

Overlay analysis is used for understanding the mutual relationship among the various features on the Earth’s surface and the periodic changes underwent by them. Thus overlay analysis can show the flood levels at different places and also the deforestation rate over the years. It can also find areas susceptible to wildfire. And to check the number of buildings in an area buffer zone is used.