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The food chain refers to the transfer of energy from:
Why are winters more severe in Southern Hemisphere than in Northern Hemisphere?
Speed of wind is measured by:
What is the percentage coverage of Tropical Forest on earth’s landmass?
Maps showing natural features of the earth are called maps.
In a desert region, soil erosion can be checked by:
An artificial ecosystem is represented by:
Which of the following minerals are required for smelting iron ore?
Source of energy in ecosystem is:
Sink hole is a phenomenon of topography.