CBSE Class 7 Social Science Surface Landforms Change Assignment

Q. 1 Give suitable term to the following:

i) Different sections of the river.

ii) Functions performed by the river.

iii) The river’s most important action in the upper course.

iv) The valley which becomes deep and narrow, with steep, wall-like sides after being eroded by the river.

v) These are called large gorges.

vi) One feature formed when the river descends from a higher-level to a lower-level.

vii) Sediments deposited by river.

viii) The bow-shaped lake.

Q.2 Fill in the blanks.

i) The s-shaped bends formed by the river are called as____________.

ii) Deltas are formed at____________.

iii) The rivers draining into _______________do not form deltas.

iv) ______________________is the largest delta in the world.

v) A pile of rocks deposited by glaciers is called_____________.

vi) The action of wind is more prominent in _______and ______________.

vii) Mushroom rocks are features caused by the action of________.

viii) The thickest loess deposits are found in_____________.

Q 3 Define the following.

i) Oasis ii) Lagoon iii) Delta

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