INSIGHT UPSC QUIZ

What is the second most abundant element on Earth’s crust?

The acceleration due to gravity at the equator:

The moon is showing its same face to the earth because:

A level of atmosphere which is composed partly of electrons and positive ions is called:

 _________ affect the rate of humus formation of soil.

The remedies to soil erosion are:
I. Contour bunding
II. Regulation of land use
III. Cutting of trees
IV. Allowing grazing of animals

The term “Doab” means:

The largest ecosystem of the Earth is:

Alluvial soils are rich soil for crop cultivation but are poor in:

The distance of 1° longitudes on Earth is almost equal to which of the following?