Multiple Choice QuestionsIn the treatment of waste water discharge, which treatment stage involves biological treatment?
Primary treatment
Secondary treatment
Tertiary treatment
Reverse osmosis stage
Ozone depletion in stratosphere would result in
forest fires
global warming
skin cancer incidence
None of the above
A lake with nutrients is called
trophic
euphotic
oligotrophic
eutrophic
D.
eutrophic
Eutrophication is the process in which lakes receive nutrients such as phosphorus and nitrogen and sediment from the surrounding watershed and become more fertile and shallow.
Trophic level is the group of organisms within an ecosystem which occupy the same level in a food chain.
Euphotic zone or the sunlight zone is the uppermost layer of the ocean or lake exposed to intense sunlight.
Oligotrophic lake is a lake with low primary productivity due to low nutrient content. Also, they have low algal production.
According to Kyoto protocol the major nations abide to reduce concentration of green house gases by
2008
2010
2012
2018
At which latitude, heat gain through insolation approximately equals heat loss through terrestrial radiation?
66 North and South
North and South
40 North and South
North and South
More than 70% of world's freshwater is contained in
Antartica
Glaciers and Mountains
Greenland
Polar ice
Which one of the following pairs is mismatched?
Biomass burning - Release of CO2
Fossil fuel burning - Release of CO2
Nuclear power - Radioactive wastes
Solar energy - Green house effect
Identify the correctly matched pair
Montreal protocol - Global warming
Kyoto protocol - Climatic change
Ramsar convention - Ground water pollution
Basal convention - Biodiversity conservation
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