Read the following paragraph and fill up the blanks with correct option.

Decline in the thickness of ozone layer over a restricted area is called _________ . It was first discovered over__________ in 1985. Amount of atmospheric ozone is measured by ___________ spectrometer and is expressed in ___________ Units

(1) Ozone hole, Australia, Dobson, Watson
(2)  Ozone hole, Antarctica, Dobson, Dobson
(3) Ozone shield, Greenland, Watson, Dobson
(4) ODS hole, USA, Watson, Watson

Which of the following is not consumer?

(1)  Carnivores
(2)  Herbivores
(3)  Autotrophs
(4)  Omnivores

Which one of these are not fossil fuel

(1) coal
(2)  Petrol
(3) Diesel
(4) wood

The study of interaction between living organism and environmentis called 
(1) Ecology (2) Phytogeography (3) Psychology (4) Mycology

Which one is more permanent ecosystem?

(1) Forest
(2) Mountain
(3) Desert
(4) Sea