General Physica...

Because of which one of the following factors, clouds do not precipitate in deserts?

At high altitudes, pressure cooker is preferable for cooking, because the boiling point of water _________.

Denudation involves four processes, which take place simultaneously. On what factors are these processes dependent to sculpt a landform?
(1) Nature of relief  (2) Structure of rocks
(3) Local climate    (4) Interference by man

With respect to acid lava, choose the correct features of them.
(1) Low density and have high percentage of silica
(2) Highly viscous  

Which one of the following sets of biomes represent the right sequence in terms of increasing water deficiency?

La Nina is suspected to have caused recent floods in Australia. How is La Nina different from El Nino?
1. La Nina is characterised by unusually cold ocean temperature in equatorial Indian Ocean, whereas El Nino is characterised by unusually warm ocean temperature in the equatorial Pacific Ocean
2. El Nino has adverse effect on South- West monsoon in  India, but La Nina has no effect on monsoon climate.
Which of the statements given above is / are correct?    

In absorption of insolation, the most significant part is played by _________.

What happens when water is condensed into ice?

Surface run-off becomes stream when water flows from certain height down slope under impact of gravity. Which of the following form streams?
(1) Perennial  (2) Intermittent
(3) Ephemeral   (4) Seasonal

El Nino associated with the formation of the South-West monsoon of India is ____________.