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Among the biotic components of the ecosystem, the producer system is ?
Sea
Rivers
Green Plants
Animals
Which of has following group of gases contribute to the 'Green House Effect' ?
Carbon tetrafluoride and Nitrous oxide
Carbon monoxide and Sulphur dioxide
Ammonia and Ozone
Carbon dioxide and Methane
Which one of the following disease is not transmitted by tiger mosquitoes ?
Dengue
Chikungunya
Japanese Encephalitis
Yellow fever
Which one of the following air pollution can affect blood stream leading to death ?
Cadmium
sbestos dust
Carbon monodioxide
Lead
The disease caused by deficiency of protein in children is called
Pellagra
Marasmus
Beri-Beri
Rickets
