Tag: biodiversity and classification
Questions Related to biodiversity and classification
The term "the evil quarter" is related with four major causes of
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forest loss
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population explosion
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air pollution
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biodiversity losses.
There are four major causes of biodiversity losses which are collectively called as the evil quartet. These are habitat loss and fragmentation, over exploitation, alien species invasion and co-extinctions.
Fill in the blanks with the most appropriate option.
The values of z lies in the range of _______ regardless of the taxonomic group or the region.
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0.1 to 0.2
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0.3 to 0.8
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0.1 to 1.0
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0.6 to 1.8
Alexander Von Humboldt observed that within a region richness increased with increased explored area, but only upto a limit. If a graph is plotted between species richness and area then we get a rectangular hyperbola. ON a log scale, the relationship becomes linear (straight line) and is described by the equation,
Which of the following countries has the highest biodiversity?
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Brazil
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South Africa
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Russia
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India
Brazil is the country with the highest biodiversity in the world. One-tenth of the world's overall species lives here.
In Europe and Scandinavia, 'PH' value of rain and snow is
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2 to 4
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4 to 5
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3 to 5
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9
During the winter in the Northern Hemisphere, the "land of the midnight sun" would be found:
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At high latitudes
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At middle latitudes
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Near the equator
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In the desert southwest
Which continent is involved in glacier melting in mountainous regions?
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Asia
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Europe
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Antarctica
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North America
The main reason(s) for warm summers in northern middle latitudes is that:
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The earth is closer to the sun in summer
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The sun is higher in the sky and we receive more direct solar radiation
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The days are longer
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Only (b) and (c) are correct
What is altitude of menopause?
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80 km
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45 km
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50 km
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90 km
The subtropical climatic zone lies between
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$0-22^{o}$ latitude
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$20^{o}-40^{o}$ latitude
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$40^{o}-60^{o}$ latitude
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$60^{o}-80^{o}$ latitude
Subtropical climate zone:
Area - between the tropical zone and the temperate zone (25 degree to 40 degree North and South latitude).
Average temperature - 20 to 35 degree Celsius.
Precipitation - Dry, winter humidity and always wet areas.
Vegetation - Semi deciduous or evergreen forests, hardwood forest with winter rain, savannah, pasture land, semi desert, warm temperate moist forests, nemoral deciduous forests.
Which of the following is wrongly matched?
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Temperate zone - 20-40$^o$ latitude
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Hypolimnion - thermal stratification in lakes
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Ozone layer - stratosphere
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Profundal zone - dark zone
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Ectotherms - cold blooded animals
From $23.5^0$N to $66.5^0$N and between $23.5^0$S and $66.5^0$S are the temperate zones, where there are clear spring/summer/fall/winter seasons. The north temperate zone extends from the tropic of cancer to the arctic circle. The south temperate zone extends from the tropic of capricorn to the antarctic circle. Between $23.5^0$S and $23.5^0$N latitude we have the tropics - where high temperatures are the norm, and the sun can beat down from directly overhead once or twice each year.