{"id":17304,"date":"2022-03-31T15:00:26","date_gmt":"2022-03-31T09:30:26","guid":{"rendered":"https:\/\/mcq-questions.com\/?p=17304"},"modified":"2022-03-31T15:08:37","modified_gmt":"2022-03-31T09:38:37","slug":"ncert-solutions-for-class-12-geography-chapter-6-part-c","status":"publish","type":"post","link":"https:\/\/mcq-questions.com\/ncert-solutions-for-class-12-geography-chapter-6-part-c\/","title":{"rendered":"NCERT Solutions for Class 12 Geography Chapter 6 Spatial Information Technology"},"content":{"rendered":"

Detailed, Step-by-Step NCERT Solutions for Class 12 Geography<\/a> Chapter 6 Spatial Information Technology Questions and Answers were solved by Expert Teachers as per NCERT (CBSE) Book guidelines covering each topic in chapter to ensure complete preparation. https:\/\/mcq-questions.com\/ncert-solutions-for-class-12-geography-chapter-6-part-c\/<\/p>\n

Spatial Information Technology NCERT Solutions for Class 12 Geography Chapter 6<\/h2>\n

Spatial Information Technology Questions and Answers <\/span>Class 12 Geography Chapter 6<\/h3>\n

Question 1.
\nChoose the right answer from the four alternatives given below:
\n(i) The spatial data are characterised by the following forms of appearance.
\n(a) Positional
\n(b) Linear
\n(c) Areal
\n(d) All of the above
\nAnswer:
\n(c) Areal<\/p>\n

\"NCERT<\/p>\n

(ii) Which one of the following operations requires analysis module software?
\n(a) Data storage
\n(b) Data display
\n(c) Data output
\n(d) Buffering
\nAnswer:
\n(b) Data display.<\/p>\n

(iii) Which one of the following is a disadvantage of Raster data format?
\n(a) Simple data structure
\n(b) Easy and efficient overlaying
\n(c) Compatible with remote sensing imagery
\n(d) Difficult network analysis
\nAnswer:
\n(d) Difficult network analysis<\/p>\n

(iv) Which one of the following is an advantage of vector data format:
\n(a) Complex data structure
\n(b) Difficult overlay operations
\n(c) Lack of compability with remote sensing data
\n(d) Compact data structure
\nAnswer:
\n(a) Complex data structure<\/p>\n

\"NCERT<\/p>\n

(v) Urban change detection is effectively undertaken in GIS core using:
\n(a) Overlay operations
\n(b) Proximity analysis
\n(c) Network analysis
\n(d) Buffering
\nAnswer:
\n(d) Buffering<\/p>\n

Question 2.
\nAnswer the following questions in about 30 words:<\/p>\n

(i) Differentiate between raster and vector data models.
\nAnswer:
\nRaster Data Models. Raster data represents a graphic features as apattern of gird of squares a raster file would represent the image by sub-dividing the paper into a matrix of small rectangles similar to a sheet of graph paper.<\/p>\n

Vector Data Models. Vector data models represents the object as a set of lines drawn between specific points and vector data models representation of the same diagonal line would record the position of line by simple recording the coordinates of its starting and ending points.<\/p>\n

\"NCERT<\/p>\n

(ii) What is an overlay analysis?
\nAnswer:
\nAn overlay operation is the hallmark of GIS. An integration of multiple layers of maps using overlay operations is an useful analysis function. In the other views GIS makes it possible to overlay two or more thematic layers of maps of the same area to obtain a new map layer. Map overlay can be used to learn the changes in land use over two different periods.<\/p>\n

(iii) What are the advantages of GIS over manual methods?
\nAnswer:
\nAdvantages of GIS over manual methods are:<\/p>\n