51.
Habitat loss and fragmentation, over exploitation, alien species invasion and co extinction are causes for

52.
Drinking of fluoride containing water results :

53.
The amount of solar radiation reaching the surface of the earth is called

54.
The lag in daily temperature refers to the time lag between the:

55.
The study of minerals is called

56.
MoEF means

57.
During a radiation inversion, wind machines

58.
Which of the following will increase in a rising parcel of air?

59.
The maximum pressure that water vapor molecules would exert if the air were saturated is called the:

60.
The density of water vapour in a given parcel of air is expressed by the: