Representation of Geographical Features- Geography Ch-1, Class-7
(A) Tick the (Ö) correct option:
1. This is
the ratio of the distance between two places on a map to the actual distance
between the same two places on the ground.
(a) Scale(Ö) (b)
Sketch (c) Globe (d) Plan
2. The
figures denoting the height of the contour line are colored
(a) green (b) red (c)
brown(Ö)
(d) Yellow
3. This
scale is stated in words
(a) Rational (b) Graphic (c)
Verbal (Ö) (d)
Linear
4. Antiquities
are shown in …………… color on the map
(a) blue (b) tallow (c) brown (d) red (Ö)
5. The
distance between two points along a straight line can be measured by
(a) ruler (Ö) (b)compass (c) twine (d)
stick
6. In this
fraction the number is always 1.
(a)
Representative Fraction (Ö) (b) Refrective
Fraction
(c)
Reorganization Fraction (d)
Reduction Fraction
(B) Fill in the blanks
1. ……………………
provides a complete image of an area. (Topographical Map)
2. …………. Is
the ratio between the map distance and the ground distance. (Scale)
3. …………. Ar lines
that run vertically =, whereas ………….. lines that travel horizontally.
(longitude, latitude)
4.
Mountains, hills, rivers, etc ………… features shown on land. (Natural
Geographical)
5. ……………..
is used to measure a distance along a curved line. (Optometry)
6. The
color yellow is used to show …………… on
topographical sheet. (cultivated area)
(C) Match the following columns.
|
Sl. No. |
Column-A |
.Column-B |
|
1 |
Contour Lines |
Yellow |
|
2 |
Unmetalled roads |
Blue |
|
3 |
Woodland |
Brown |
|
4 |
Cultivated Area |
Red |
|
5 |
Unlined walls |
Green |
Answer:
|
Sl. No. |
Column-A |
.Column-B |
|
1 |
Contour Lines |
Brown |
|
2 |
Unmetalled roads |
Red |
|
3 |
Woodland |
Green |
|
4 |
Cultivated Area |
Yellow |
|
5 |
Unlined walls |
Blue |
(D) State whether the following statements are True or False:
1. A
metalled road is shown by two lines (False)
2. Land use
refers to the way piece land is used in areas (True)
3. A verbal
scale is stated in words (True)
4. A
statement scale consists of a straight line that is divided into lengths. (False)
5. The numerator
in a Representation Fraction expresses the actual distance between two places
on the ground. (True)
6. The
distance along a curved line is measured by a ruler. (False)
(E) Answer the following questions in one or two words/sentences.
1. What are
Topographical Maps?
Ans:
Topographic
maps provide precise and thorough visual depictions of various elements found
on the Earth's surface.
2. Explain
why colors are used in Topographical maps.
Ans:
Topographic
maps commonly use specific colors to represent different features. For
instance, contours are typically depicted in brown, bodies of water in blue,
boundaries in black, and grids and roads in red.
3. What is
meant by the scale of the map?
Ans:
The concept
of scale illustrates the connection between the distance on a map and the
actual ground distance, often represented as a ratio like 1cm = 10 km.
4. Which
three ways are used to represent the scale of a mao?
Ans:
The map or
cartographic scale represents the ratio of a distance on Earth to the
equivalent distance on a map. Generally, there are three types of scales
utilized on maps: a written or verbal scale, a graphic scale, or a fractional
scale.
5. Convert
the statement scale 1 cm = 100 km into RF scale.
Ans:
The scale
may be 1 cm = 100 km. small-scale maps. One centimeter on a 1:1,000,000
scale map is equal to 1,000,000 centimeters (or 10,000 meters – 10 kilometers)
on the ground; four centimeters on the map, therefore, represent 40 kilometers
on the ground (10 cm = 100 km).
6. What
method would you use to measure the length of a river?
Ans:
When
determining the length of a river, we employ the twine method. The length of
the twine is measured using a ruler or linear scale, typically in centimeters
or inches.
(F) Answer the following questions:
1. Name
three features that are shown by red and brown colors on a topographical map.
Ans:
The colors
of the lines usually indicate similar classes of information: topographic
contours (brown); lakes, streams, irrigation ditches, and other hydrographic
features (blue); land grids and important roads (red); and other roads and
trails, railroads, boundaries, and other cultural features (black).
2. How can
topographical maps help us to know about the transport and communication of an area?
Ans:
When you
take a look at a topographical map, you'll see black lines crisscrossing the
map. These lines represent roads and railway tracks, giving you an idea of the
transportation infrastructure in the area. They provide valuable information
about the different modes of transport being utilized in that region.
3. How does the relief of an area affect land use?
Ans:
The term
"relief" refers to the variations in elevation across the Earth's
surface, and it is significantly influenced by the underlying geological
formations. Relief is dependent on the hardness, permeability, and structure of
the rock. A notable example of relief is the High Force waterfall in Teesdale,
County Durham.
4. What is a
scale? Why is a scale used on maps?
Ans:
The ratio between the distance on the paper and the actual distance on the ground is
defined as the scale of a map. Example: 1 cm = 5 kms. - It means the distance
on the paper between two points is 1 cm. - The distance on the ground (actual
distance) is 5 km.
This helps
in navigation because it allows the user to determine the actual distance
between places.
5. Describe
the method by which the distance along a curved and straight line is measured.
Ans:
To determine
the distance between the two locations, you can use a ruler for a straight line
or a string for a curved path. Once you have the measurement, find the
appropriate scale on the map you plan to use. This could be a ruler bar scale
or a written scale in words or numbers.
6. What is
meant by RF? State its one advantage.
Ans:
The ratio of
distance on the map to distance on the ground is known as a representative
fraction (RF).
One of the
major advantages of using the R.F. (Representative Fraction) scale is that it
allows you to directly compare the sizes of objects between different maps.
PROGRESS
CHECKER
Answer the
following questions:
Q1. What do
you understand by ‘Scale’?
Ans:
The scale
represents the relationship between the real distance on the ground and the
distance depicted on the map. For instance, if a student's home is 10 km away
from the school and this distance is represented by 2 cm on the map, then 1 cm
on the map corresponds to 5 km on the ground.
Q2. What is a graphic scale?
Ans:
A graphic
scale resembles a ruler with labeled segments indicating distances. Similar to
using a written or verbal scale, you would employ a ruler to measure distances
with this type of scale.
Q3. What is an Opisometer?
Ans:
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