Read and download free pdf of CBSE Class 7 Social Science How Surface Landforms Change Assignment Set B. Get printable school Assignments for Class 7 Social Science. Standard 7 students should practise questions and answers given here for Social Science in Grade 7 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 7 Social Science prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations
CBSE Class 7 Social Science Assignment-How Surface Landforms Change (1). Students are advised to refer to the attached assignments and practice them regularly. This will help them to identify their weak areas and will help them to score better in examination. Parents should download and give the assignments to their children for practice.
Q. 1 Give suitable term to the following:
i) Different sections of the river.
ii) The river’s most important action in the upper course.
iii) The valley which becomes deep and narrow, with steep, wall-like sides after being eroded by the
iv) These are called large gorges.
v) One feature formed when the river descends from a higher-level to a lower-level.
vi) Sediments deposited by river.
vii) The bow-shaped lake.
Q.2 Fill in the blanks.
i) The combined action of all processes that involve only the breaking down of rocks is known as
ii) The combined action of transportation and breaking down of rocks is known as ___________.
iii) The region near a river’s mouth comprising a network of distributaries is called a ____________.
iv) A lake of sea water separated from the main body of the sea by deposits accumulated on the sea
bed is called a ___________.
v) _________ is an organic substance derived from partly decomposed plant and animal remains in
vi) __________ falls in Venezuela are the world’s largest falls.
vii) The Grand Canyon in the USA has been carved by the rivers _________.
Q.3 Name any three types of landforms formed by a river in
i) Upper course - ______________, _____________, _____________
ii) Middle course- ______________, _____________, _____________
iii) Lower course- ______________, _____________, _____________
Q.4 Match the two columns-
i) Estuaries a) Beaches and lagoons
ii) Glaciers b) do not involve transportation
iii) Wind c) Mushroom rocks, sand dunes
iv) Weathering, Erosion, Mass movement d) Denudation
v) Weathering e) Moraines
vi) Chilika f) Humus
vii) Soil g) Largest lagoon (Orissa)
Q.5 Define the following terms-
b) Flood plain
c) Marine erosion
Q. 6 Name and label the following diagrams.
Q.7 Draw the different sections of a River’s Course and label its features.
Q.8 Answer the following questions.
i) What are the factors that influence the rates of weathering and erosion?
ii) Describe the formation of a delta.
iii) How can we conserve soil?
iv) Differentiate between weathering and erosion.
v) What are the functions performed by a river?
Q.9 Give reasons.
i) In an estuary no delta is formed.
ii) The action of wind is more prominent in dry regions.
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