Multiple Choice QuestionsThe Great Barrier Reef along the east coast of Australia can be categorised as
population
community
ecosystem
biome.
Which one of the following is a pair of endangered species
Garden lizard and Mexican poppy
Rhesus monkey and Sal tree
Indian peacock and carrot grass
Hornbill and Indian aconite
Which one of the following is a matching pair of a drug and its category
Amphetamines - stimulant
Lysergic acid dimethyl amide - narcotic
Heroin - psychotropic
Benzodiazepine - pain killer
A baby has been born with a small tail. It is a case exhibiting
retrogressive evolution
mutation
atavism
metamorphosis
Which one of the following is correctly matched regarding an Institute and its location
National Institute of Virology - Pune
National lnstitute of Communicable Diseases - Lucknow
Central Drug Research Institute - Kasauli
National Institute of Nutrition - Mumbai
Electron beam therapy is a kind of radiation therapy to treat
Enlarged prostrate gland
Gall bladder stones by breaking them
Certain types of cancer
Kidney stones.
Severe Acute Respiratory Syndrome (SARS)
is caused by a variant of Pneumococcus pneumonia
is caused by a variant of the common cold virus (coronavirus)
is an acute form of asthma
affects non-vegetarians much faster than the vegetarians
Cattle fed with spoilt hay of sweet clover which contains dicumarol
are healthier due to a good diet
catch infections easily
may suffer vitamin K deficiency and prolonged bleeding
may suffer from beri beri due to deficiency of B vitamins.
If the Bengal Tiger becomes extinct
hyenas and wolves will become scars
the wild areas will be safe for man and domestic animals
its gene pool will be lost forever
the populations of beautiful animals like deers will get stabilized.
Nitrogen oxides produced from the emission of automobiles and power plants, are the source of fine air borne particles which lead to
photochemical smog
dry acid deposition
industrial smog
wet acid deposition
B.
dry acid deposition
Sulfur and nitrogen oxides emitted into the atmosphere react to form compounds that arc transported long distances and are subsequently deposited to the Earth's surface in wet and dry forms. Although the term "acid rain" is widely recognized, the dry deposition portion ranges from 20 to 60 percent of total pollutant deposition, and represents the particulate and gaseous forms. A more accurate description of the overall process is acid deposition rather than acid rain.
Dry deposition occurs when sulfur dioxide and nitrogen oxides react, but not with water. It settles out of the atmosphere as particle or gases.
The effects of acid deposition include acidification of lakes and streams, nutrient enrichment of coastal waters and large river basins. soil nutrient depletion and decline of sensitive forests, agricultural crop damage, and impacts on ecosystem biodiversity. Toxic pollutants and metals also can be transported and deposited through atmospheric processes. Both local and long-range emission sources contribute to atmospheric deposition.
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