Question

Given below are two statements: Assertion (A): Remote sensing and GIS applications have potential for rapid monitoring of spatial and temporal variations in land features. Reason (R): The GIS permits multi-layer maps of various features of investigation that help in developing alternative plans for drainage system design and layout.

• A. Both A and R are correct and R is the correct explanation of A
• B. Both A and R are correct but R is not the correct explanation of A
• C. A is correct but R is not correct
• D. A is not correct but R is correct

Hint:

Remote sensing provides spatial data, while GIS helps analyse multiple map layers.

Answer 1

The Correct Option is A

Concept:
Remote sensing and GIS are useful tools for land and water resource planning.

Step 1: Check Assertion.
Remote sensing helps in monitoring spatial and temporal variations in land features quickly. \[ A \text{ is correct} \]

Step 2: Check Reason.
GIS allows preparation and analysis of multi-layer maps such as soil, drainage, slope, land use and water table maps. \[ R \text{ is correct} \]

Step 3: Check explanation.
The reason explains how GIS and remote sensing support planning and monitoring for drainage system design and land feature analysis. \[ R \text{ correctly explains } A \] \[ \therefore \text{Correct Answer is (A)} \]