31.
Which remote sensing method uses the principle of emitting sound waves and recording their echoes?

32.
In GIS, the term 'attribute data' refers to:

33.
Which of the following is NOT a benefit of using remote sensing in geological engineering?

34.
What is the typical use of thermal infrared remote sensing in geological engineering?

35.
Which GIS tool helps to analyze the flow direction and accumulation of water over a terrain?

36.
What is the principle of Synthetic Aperture Radar (SAR) in remote sensing?

37.
What type of GIS analysis is used to combine two or more spatial data layers?

38.
Which of the following best describes the Normalized Difference Water Index (NDWI)?

39.
What is the function of GPS in geological engineering projects?

40.
Which resolution type in remote sensing determines the frequency at which data is collected over the same area?