Which of the following events took place in the Cenozoic era?
Options: Formation of the rockies, India collides with Asia and the formation of the Himalayas and the Alps, Formation of the Appalachians and central European mountains, Splitting of India from Antarctic, Breaking up of Pangaea
On a night when the sky is clear, the temperature may dip considerably; on a cloudy night the temperature will usually dip much less. The reason for this difference is that
Options: the clear sky allows radiant energy to escape readily from the earth, on a cloudy night the clouds are warm and therefore retard the cooling, the clear sky allows the cold of outer space to reach the earth, current of air carry the heat away from the earth on a clear night
What is the purpose of 'United Nations Conference on Trade and Development' (UNCTAD)?
Options: Promotes International Trade with a view to accelerate economic growth of developing countries, Promotes International Monetary co-operation & expansion of International Trade, Set rules for World Trade, None of the above
Options: very cold wind, which blows down from the plateau of central France, swift, dry, cold northerly wind that blows down from the western Alps and the plateau of Southern France and out over the Mediterranean, wind that blows for 100 days a year and may cause extensive frost damage to plants, All of the above
The term 'flora' in the context of natural vegetation refers to
Options: assemblage of plant species living in association with each other in a given environmental frame, plants of a particular region or period, listed by species and considered as a group, a large tract covered by trees and shrubs and its administration for assessing economic benefits, role played by species of animals in the maintenance of ecological balance