NCERT Solutions for Class 12 Geography Chapter 6 Spatial Information Technology

Q.1: Choose the right answer fmm the four alternatives given below :


(i) The spatial data am characterised by the following forms of appearance :
(a) Positional
(b) Linear
(c) Areal
(d) All the above forms


(ii) Which one of the following operations requires analysis module software?
(a) Data storage
(b) Data display
(c) Data output
(d) Buffering


(iii) Which one of the following is disadvantage of Raster data format ?
(a) Simple data structure
(b) Easy and efficient overlaying
(c) Compatible with remote sensing imagely
(d) Difficult network analysis


(iv) Which one of the following is an advantage of Vector data format ?
(a) Complex data structure
(b) Difficult overlay operations
(c) Lack of compatibility with remote sensing data
(d) Compact data structure


(v) Urban change detection is effectively undertaken in GIS com using:
(a) Overlay operations
(b) Proximity analysis
(c) Network analysis
(d) Buffering

Ans : Missing 

Q.2: Answer the following questions in about 30 words :


(i) Differentiate between raster and hector data models.
(ii) What is an overlay analysis?
(iii) What are the advantages of GIS over manual methods?
(iv) What am important components of GIS?
(v) What ale different ways in which spatial data is built in GIS core?
(vi) What is Spatial Information

Ans : Missing 

Q.3: Answer the following questions in about 123 words :
(i) Discuss raster and vector data formats. Give example.
(ii) Write an explanatory account of the sequence of activities involved in GIS related work.

Ans : Missing