1. The use of microorganism metabolism to remove pollutants such as oil spills in the water bodies is known as :
[A]Biomagnification
[B]Bioremediation
[C]Biomethanation
[D]Bioreduction
Bioremediation
2. The largest number of Tiger Reserves are located in :
[A]Karnataka
[B]Andhra Pradesh
[C]Madhya Pradesh
[D]West Bengal
Madhya Pradesh
3. The Siberian Crane, an endangered migratory bird is a regular visitor of which of the following national park/bird sanctuaries:
[A]Ranganathittu bird sanctuary
[B]Keoladeo national park
[C]Vedanthangal bird sanctuary
[D]Sultanpur bird sanctuary
Keoladeo national park
Keoladeo National Park in Bharatpur, Rajasthan is a famous avifauna sanctuary that plays host to thousands of birds especially during the winter season.
It is also a declared World Heritage Site. The Sanctuary is one of the richest bird areas in the world. It is known for nesting of its resident birds and
visiting migratory birds including water birds. The rare Siberian cranes visit the place in winter season.
4. Which of the following Indian States/UT has the maximum percentage of mangrove cover in the country ?
[A]Gujarat
[B]West Bengal
[C]Andaman and Nicobar
[D]Orissa
West Bengal
West Bengal followed by Gujarat & Andaman and Nicobar.
5. In an ecotone, the species which become abundant are called:
[A]Edge species
[B]Keystone species
[C]Endemic species
[D]Foster species
Edge Species
An ecotone is a transition area between two biomes but different patches of the landscape, such as forest and grassland. The ecotone contains not only species common to the communities on both sides; it may also include a number of highly adaptable species that tend to colonize such transitional areas. This can produce an edge effect along the boundary line, with the area displaying a greater than usual diversity of species. The phenomenon of increased variety of plants as well as animals at the community junction is called the "edge effect" and is essentially due to a locally broader range of suitable environmental conditions or ecological niches.
6. The word ‘ecology’ (Ökologie) was coined in 1866 by :
[A]Charles Darwin
[B] Robert Whittaker
[C]Arthur Tansley
[D]Ernst Haeckel
Ernst Haeckel
The word "ecology" ("Ökologie") was coined in 1866 by the German scientist Ernst Haeckel (1834–1919).
7. Which of the following statements is NOT true?
[A]Photochemical smog always contains Ozone.
[B]The toxic effect of Carbon Monoxide is due to its greater affinity for haemoglobin as compared to oxygen.
[C]Lead is the most hazardous metal pollutant of automobile exhaust.
[D]None of the above
Option [D]
All the Statements are true.
8. Identify the non Green-House Gas(GHG) from the following :
[A]Methane
[B]Nitrous Oxide
[C]Sulphur Hexafluoride
[D]Carbon Monoxide
Carbon Monoxide
9. The highest per capita emitter of Carbon dioxide in the world is :
[A]US
[B]China
[C]Qatar
[D]Saudi Arabia
Qatar
Qatar is the highest per capita emitter of CO2 in the world ranked by metric tonnes of emissions from the burning of fossil fuels and cement manufacture, but not emissions from land use such as deforestation.
10. Which of the following is not among the four coral reef regions of India identified by the Government for intensive conservation and management?
[A]Gulf of Mannar
[B]Gulf of Khambat
[C]Lakshadweep Islands
[D]Andaman and Nicobar Islands
Gulf of Khambat
Gulf of Kutch is the identified region.
11. The relationship between water fern Azolla and cyanobacterium Anabaena is :
[A]Symbiotic
[B]Mutualistic
[C]Commensalism
[D]Proto-Cooperation
Symbiotic
12. Which one of the following is a useful biological indicator of Sulphur-dioxide pollution ?
[A]Bryophytes
[B]Algal blooms
[C]Pseudomonas
[D]Lichens
Lichens
13. In Nitrogen Cycle, soil nitrates are transformed into free nitrogen by:
[A]Nitrifying bacteria
[B]Denitrifying bacteria
[C]Ammonifying bacteria
[D]Both [A] and[C]
Denitrifying Bacteria
14. An aquatic plant introduced from America to check pollution turned out to be a troublesome weed in Indian water bodies. The name of this ‘invasive alien species’ is :
[A]Opuntia
[B]Aegilops
[C]Eichhornia
[D]Pistia
Eichhornia
Eichhornia crassipes, commonly known as Common Water Hyacinth, is an aquatic plant native to the Amazon basin, and is often considered a highly problematic invasive species outside its native range. The plant was introduced by Belgian colonists to Rwanda to beautify their holdings and then advanced by natural means to Lake Victoria where it was first sighted in 1988. There, without any natural enemies, it has become an ecological plague, suffocating the lake, diminishing the fish reservoir, and hurting the local economies.
15. ‘Lion-tailed macaque’ is the key faunal species of which Biosphere Reserve?
[A]Nilgiri
[B]Dehang-Debang
[C]Dibru-Saikhowa
[D]Nokrek
Nilgiri
mukesh is a mankad