Which one of the following mineral ores is formed by decomposition of rocks, leaving a residual mass of weathered materials?
Bauxite
Coal
Gold
Zinc
Which one of the following types of coal is most popular for commercial use?
Anthracite
Lignite
Haematite
Bituminous
Which of the following is an important social indicator to measure the extent of equality between males and females in a society at a given time?
Age composition
Literacy rate
Sex ratio
Death rate
Which one of the following does not belong to land transport?
Roads
Railways
Airways
Pipelines
Which one of the following ports is a tidal port?
Mumbai
Kandla
Visakhapatnam
Manglore
Who maintains the district roads?
Municipality
Zila Parishad
District Magistrate
Block Development officer (BDO)
Which is the most abundantly available fossil fuel in India?
Petroleum
Biogas
Firewood
How many types of transport systems in India?
Two
Five
Six
Seven
The soils in delta regions are :
Laterite soil
Black soil
Alluvial soil
Red soil
Name the State in India which receives ‘mango showers’.
Assam
Kerala
Tamil Nadu
Karnataka