Montreal protocol aims at
reduction of ozone depleting substances
biodiversity conservation
control of water pollution
control of water pollution
A.
reduction of ozone depleting substances
In August 1989, 44 countries and EEC ratified the Montreal protocol, which provides a mechanism to review the efficiency of control measures. In a policy statement called Helsinki declaration, the attending nations agreed to phase out the production and consumption of controlled CFCs as soon as possible but not later than the year 2007. They also agreed to phase out the halons and to control and reduce other ozone depleting substances (ODSS).
A lake near a village suffered heavy mortality of fishes within a few days. Consider the following reasons for this
(1) lost of urea and phosphate fertiliser were used in the crops in the vicinity.
(2) The area was sprayed with DDT by an aircraft.
(3) The lake water turned green and stinky/
(4) Phytoplankton populations in the lake declined initially thereby greatly reducing photosynthesis.
Which were two of above the main causes of fish mortality in the lake?
2, 3
3, 4
1,3
1,3
Global agreement on specific control strategies to reduce the release of ozone depleting substance was adopted by
Rio de Janerio Conference
The Montreal protocol
The koyoto protocol
The koyoto protocol
Chipko movement was launched for the protection of
grasslands
forests
livestock
livestock
Steps taken by the Government of India to control air pollution include
compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with diesel
Compulsory PUC (pollution Under control) certification of petrol driven vehicles, which tests for carbon monoxide and hydrocarbons
permission to use only pure diesel with a maximum of 500 ppm sulphur as fuel for vehicles
permission to use only pure diesel with a maximum of 500 ppm sulphur as fuel for vehicles
