Man and Environment

Man and Environment
In a food chain, the first trophic level is made of
decomposer
producer
consumer
autotrophs
Author: rikazzz Comment
Man and Environment
The process in which nitrites and nitrates are reduced into nitrogen gas by the denitrification of bacteria is called
ammonification
assimilation
nitrification
denitrification
Author: rikazzz Comment
Man and Environment
The coal burning in the air leads to
oxygen and sulphur dioxide
methane and nitrogen dioxide
dust and nitrogen
dust and smoke
Author: rikazzz Comment
Man and Environment
Intergovernmental Panel on Climate Change (IPCC) was established in
1980
1970
1950
1990
Author: rikazzz Comment
Man and Environment
The process of conversion of oxides of nitrogen into nitric acid and then into nitrates is classified as
atmospheric oxygen fixation
atmospheric nitrogen fixation
biological nitrogen fixation
biological oxygen fixation
Author: rikazzz Comment
Man and Environment
The plants are considered as basic producers in the ecosystem which is said to be
terrestrial ecosystem
aquatic ecosystem
chemical ecosystem
mechanical ecosystem
Author: rikazzz Comment
Man and Environment
Heterotrophs present in an ecosystem are called
consumers
producers
decomposers
none of above
Author: rikazzz Comment
Man and Environment
Considering the components of the ecosystem, the example of producers is
ants and flies
photosynthetic bacteria
cattle
snakes
Author: rikazzz Comment
Man and Environment
The process in which inorganic nutrients are enriched with water is called
industrialization
pollution
eutrophication
contamination
Author: rikazzz Comment
Man and Environment
The lice, leeches, and mosquitoes are considered as examples of
endoparasite
ectoparasite
digestion parasites
synthetic parasites
Author: rikazzz Comment

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