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The deepest ocean of the world is:
Pyramid of numbers in an aquatic ecosystem is .
The soil which originate under tall-grass prairie vegetation is called:
Marble is the metamorphosed form of:
Which of the following is known as the Morning Star?
The primary goal of planning for disasters is to reduce:
Earth’s Deepest point in water is Mariana trench. It is located in which of the following oceans?
Which one of the following methods of soil conservation is most effective in arid areas?
The distance of 1° longitudes on Earth is almost equal to which of the following?
Which among the followings is not the result of underground water action?