The most plausible explanation for the location of the Thar desert in western India is
Options: the obstruction caused by the Aravalis to the rain-bearing wind that proceeds to the Ganga Valley, the evaporation of moisture by heat, the absence of mountains to the north of Rajasthan to cause orographic rainfall in it, that the moisture carried by the South-west monsoon is driven away by the dry upper air current
Exposure to sunlight helps a person improve his health because
Options: the infrared light kills bacteria in the body, resistance power increases, the pigment cells in the skin get stimulated and produce a healthy tan, the ultraviolet rays convert skin oil into Vitamin D
From the following, choose the set in which names of Secretary-Generals of the UNO are arranged in correct chronological order?
Options: U Thant, Kurt Waldheim, Dag Hammarskjoeld, Trygve Lie., Trygve Lie, Dag Hammarskjoeld, U Thant, Kurt Waldheim., Trygve Lie, U Thant , Dag Hammarskjoeld, Kurt Waldheim., U Thant, Dag Hammarskjoeld, Trygve Lie, Kurt Waldheim.
Options: acts of gallantry in the presence of enemy, gallantry by children, outstanding contribution to literature, the most conspicuous bravery or self sacrifice on land, air or sea but not in the presence of the enemy