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Widening of a river valley takes place due to:
The South-East trade winds are attracted towards the Indian subcontinent in the rainy season due to:
‘Flash floods’ are associated with:
What is meant by Isthmus?
__________ is the thinnest layer of Earth.
Which one of the following types of erosion is responsible for the formation of Chambal Ravines?
As the river enters the plain it twists and turns forming large bends known as .
How many types of ecological pyramids are present in ecosystem?
The land forms formed by wave erosion is:
Algae belongs to which of the following levels of the ecosystem?