Firstranker's choice www.FirstRanker.com
Topic:- ES MSC S2N
DU MSC Environment
--- Content provided by FirstRanker.com ---
-
Which of the following is thought to be a possible consequence of rising CO2 levels?
[Question ID = 10618]
- Increased breakdown of atmospheric ozone [Option ID - 42466]
- Increased vegetative productivity [Option ID - 42467]
- Falling global temperature [Option ID - 42468]
- More rapid warming at the equator than at the poles [Option ID - 42469]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- Increased vegetative productivity [Option ID - 42467]
-
When climbing a mountain, we can observe transitions in biological communities that are analogous to the changes:
--- Content provided by FirstRanker.com ---
[Question ID = 10619]
- at different depths in the ocean [Option ID - 42470]
- in a community through different seasons [Option ID - 42471]
- in an ecosystem as it evolves over time [Option ID - 42472]
- in biomes at different latitudes [Option ID - 42473]
--- Content provided by FirstRanker.com ---
Correct Answer:-
- in biomes at different latitudes [Option ID 42473]
-
What do diversity indices such as the Shannon Index take into account?
[Question ID = 10620]
--- Content provided by FirstRanker.com ---
- Alpha diversity and beta diversity [Option ID - 42474]
- Evenness and beta diversity [Option ID - 42475]
- Species richness and evenness [Option ID - 42476]
- Species richness and beta diversity [Option ID - 42477]
Correct Answer :-
--- Content provided by FirstRanker.com ---
- Species richness and evenness [Option ID - 42476]
-
The theory that primary productivity is limited by whichever necessary metabolic requirement is present in the least supply relative to demand is known as:
[Question ID = 10621]
- Law of minimum metabolic requirement [Option ID - 42478]
- Minimum metabolic requirement [Option ID - 42479]
- Principle of limiting factors [Option ID - 42480]
- Theory of the minimum metabolic requirement [Option ID - 42481]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- Principle of limiting factors [Option ID - 42480]
--- Content provided by FirstRanker.com ---
-
A variable that is affected by and responds to changes in the manipulated variable is called:
[Question ID = 10622]
- controlled variable [Option ID - 42482]
- dependent variable [Option ID - 42483]
- independent variable [Option ID - 42484]
- random variable [Option ID - 42485]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- dependent variable (Option ID - 42483]
-
In a frequency distribution graph, frequencies are presented on the ________ and the scores (categories) are listed on the ________.
[Question ID = 10623]
- Class interval/horizontal line [Option ID - 42486]
- Horizontal line/vertical line [Option ID - 42487]
- X axis /Y axis [Option ID - 42488]
- Y axis/X axis [Option ID - 42489]
--- Content provided by FirstRanker.com ---
Correct Answer:-
- Y axis/X axis [Option ID - 42489]
-
Which of the following international conventions restricts international trade in endangered species?
--- Content provided by FirstRanker.com ---
[Question ID = 10624]
- CBD [Option ID - 42490]
- CITES [Option ID - 42491]
Correct Answer :-
- CITES [Option ID - 42491]
--- Content provided by FirstRanker.com ---
-
An ecological footprint is:
[Question ID = 10625]
- a measure of the earth's biological capacity [Option ID - 42494]
- amount of wilderness available on earth [Option ID - 42495]
- amount of biologically productive land and water a person uses [Option ID - 42496]
- a measure of a person's contribution to creating a sustainable environment [Option ID - 42497]
--- Content provided by FirstRanker.com ---
Correct Answer:-
- amount of biologically productive land and water a person uses [Option ID - 42496]
-
What is the difference between an endangered species and a threatened species?
[Question ID = 10626]
- A threatened species may still be abundant now but likely to become endangered in the near future [Option ID - 42498]
- A threatened species is at the brink of extinction now and an endangered species is likely to be at the brink in the near future [Option ID - 42499]
- A threatened species is becoming endangered specifically because of human activities [Option ID - 42500]
- There is no difference. The two terms are interchangeable [Option ID - 42501]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- A threatened species may still be abundant now but likely to become endangered in the near future [Option ID - 42498]
-
When a doctor uses a stethoscope to count your pulse rate, she is gathering information by using the ________:
--- Content provided by FirstRanker.com ---
[Question ID = 10627]
- empirical method [Option ID - 42502]
- method of intuition [Option ID - 42503]
- method of authority [Option ID - 42504]
- rational method [Option ID 42505]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- empirical method [Option ID - 42502]
-
The maximum per capita rate of increase achieved by a species under ideal environmental conditions is called the:
[Question ID = 10628]
--- Content provided by FirstRanker.com ---
- inherent rate of increase [Option ID - 42506]
- inherent growth rate [Option ID - 42507]
- intrinsic growth rate [Option ID - 42508]
- intrinsic rate of increase [Option ID - 42509]
Correct Answer:-
--- Content provided by FirstRanker.com ---
- intrinsic rate of increase [Option ID - 42509]
-
What is the Lotka-Volterra competition model based on?
[Question ID = 10629]
- Exponential population growth equation [Option ID - 42510]
- Life table equation [Option ID - 42511]
- Logistic population growth equation [Option ID - 42512]
- Realized per capita growth rate equation [Option ID - 42513]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- Logistic population growth equation [Option ID - 42512]
--- Content provided by FirstRanker.com ---
-
The best measure of central tendency for an extremely skewed distribution of scores would be ________.
[Question ID = 10630]
- cannot be determined [Option ID - 42514]
- the mean [Option ID - 42515]
- the median [Option ID - 42516]
- the mode [Option ID - 42517]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- the median [Option ID - 42516]
-
Trade winds are the prevailing pattern of surface winds. The factors determining patterns of these winds are:
[Question ID = 10631]
- gravitational field of Planet Earth [Option ID - 42518]
- rotational pattern of Earth [Option ID - 42519]
- uneven surface temperature [Option ID - 42520]
- Coriolis effect [Option ID - 42521]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- uneven surface temperature [Option ID - 42520]
-
Which of the following shows the correct order of soil texture from larger to smaller diameters?
--- Content provided by FirstRanker.com ---
[Question ID = 10632]
- Gravel, sand, clay, and silt [Option ID - 42522]
- Gravel, sand, silt, and clay [Option ID - 42523]
- Gravel, silt, sand, and clay [Option ID - 42524]
- Sand, gravel, silt, and clay [Option ID - 42525]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- Gravel, sand, silt, and clay [Option ID - 42523]
-
All members in which of the following groups have the greatest number of characteristics in common?
[Question ID = 10633]
--- Content provided by FirstRanker.com ---
- Class [Option ID - 42526]
- Genus [Option ID - 42527]
- Phylum [Option ID - 42528]
- Species [Option ID - 42529]
Correct Answer:-
--- Content provided by FirstRanker.com ---
- Species [Option ID - 42529]
-
What does the system of binomial nomenclature that assigns a unique name to each organism describe?
[Question ID = 10634]
- Family and species [Option ID - 42530]
- Genus and family [Option ID - 42531]
- Order and family [Option ID - 42532]
- Species and genus [Option ID - 42533]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- Species and genus [Option ID - 42533]
--- Content provided by FirstRanker.com ---
-
Wings of birds and insects have the same function but they do not share the same evolutionary origin. Bird and insect wings are considered to be which of the following?
[Question ID = 10635]
- Analogous [Option ID - 42534]
- Homologous [Option ID - 42535]
- Phylogenetic [Option ID - 42536]
- Taxonomic [Option ID - 42537]
--- Content provided by FirstRanker.com ---
Correct Answer:-
- Analogous [Option ID - 42534]
-
Which of the following animal phyla is most likely to leave fossils?
[Question ID = 10636]
- Annelida [Option ID - 42538]
- Cnidaria [Option ID - 42539]
- Chordata [Option ID - 42540]
- Nematoda [Option ID - 42541]
--- Content provided by FirstRanker.com ---
Correct Answer:-
- Chordata [Option ID - 42540]
-
Which of the following systems is active under stress?
--- Content provided by FirstRanker.com ---
[Question ID = 10637]
- Complete autonomic nervous system [Option ID - 42542]
- Parasympathetic nervous system [Option ID - 42543]
- Sympathetic nervous system [Option ID - 42544]
- Somatic nervous system [Option ID - 42545]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- Sympathetic nervous system [Option ID - 42544]
-
Migration of fish from fresh water to marine water is known as:
[Question ID = 10638]
--- Content provided by FirstRanker.com ---
- Anadromous [Option ID - 42546]
- Catadromous [Option ID - 42547]
- Amphidromous [Option ID - 42548]
- Potamodromous [Option ID 42549]
Correct Answer:-
--- Content provided by FirstRanker.com ---
- Catadromous [Option ID - 42548]
-
How does pupa survive through its life cycle?
[Question ID = 10639]
- Caudal flaps [Option ID - 42550]
- Feeding through the water [Option ID - 42551]
- Feeding through the proboscis [Option ID - 42552]
- Through food accumulated in the larval stage [Option ID - 42553]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- Through food accumulated in the larval stage [Option ID - 42553]
--- Content provided by FirstRanker.com ---
-
Melatonin is synthesized from which of the following?
[Question ID = 10640]
- Histamine [Option ID - 42554]
- Melanine [Option ID - 42555]
- Tyrosine [Option ID - 42556]
- Tryptophan [Option ID - 42557]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- Tryptophan [Option ID - 42557]
-
The slogan 'Taking Action for living planet' was used by:
[Question ID = 10641]
- UNESCO [Option ID - 42558]
- United Nations Environment Programme [Option ID - 42559]
- World bank [Option ID - 42560]
- World Wide Fund for Nature [Option ID - 42561]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- World Wide Fund for Nature [Option ID - 42561]
-
The Guinness Book of World Records has declared ________ as the largest river island in the world.
--- Content provided by FirstRanker.com ---
[Question ID = 10642]
- Bananal [Option ID - 42562]
- Marajo [Option ID - 42563]
- Majuli [Option ID - 42564]
- Nongkhnum [Option ID - 42565]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- Majuli [Option ID - 42564]
-
In an experiment, we manipulate a/an ________ variable to observe an effect on a/an ________ variable.
[Question ID = 10643]
--- Content provided by FirstRanker.com ---
- dependent, another dependent [Option ID - 42566]
- dependent, independent [Option ID - 42567]
- independent, another independent (Option ID - 42568]
- independent, dependent [Option ID - 42569]
Correct Answer :-
--- Content provided by FirstRanker.com ---
- independent, dependent [Option ID - 42569]
-
Rooted plants are found only in the ________ zone of a lake.
[Question ID = 10644]
- limnetic [Option ID - 42570]
- littoral [Option ID - 42571]
- nektonic [Option ID - 42572]
- pelagic [Option ID - 42573]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- littoral [Option ID - 42571]
--- Content provided by FirstRanker.com ---
-
[Question ID = 10645]
- Everything affects everything else [Option ID - 42574]
- Humans have only one environment [Option ID - 42575]
- The environment is a closed system [Option ID - 42576]
- All of these [Option ID - 42577]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- Everything affects everything else [Option ID - 42574]
-
Exponential growth is characterized by which of the following?
--- Content provided by FirstRanker.com ---
[Question ID = 10646]
- 1) Growth at a constant rate [Option ID - 42578]
- 2) Growth at constant N [Option ID - 42579]
- 3) Both (1) and (2) [Option ID - 42580]
- 4) None of these [Option ID - 42581]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- 1) Growth at a constant rate [Option ID - 42578]
-
In terms of a population, what does "age structure" refer to?
[Question ID = 10647]
--- Content provided by FirstRanker.com ---
- Per capita production of goods and services by age [Option ID - 42582]
- The proportion of the population in different age groups [Option ID - 42583]
- The rate of population growth [Option ID - 42584]
- All of these [Option ID - 42585]
Correct Answer :-
--- Content provided by FirstRanker.com ---
- The proportion of the population in different age groups [Option ID - 42583]
-
The processes responsible for formation and change of Earth's materials are collectively known as the:
[Question ID = 10648]
- Atmospheric cycle [Option ID - 42586]
- Continental cycle [Option ID - 42587]
- Geologic cycle [Option ID - 42588]
- Hydrologic cycle [Option ID - 42589]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- Geologic cycle [Option ID - 42588]
--- Content provided by FirstRanker.com ---
-
In the context of biochemical cycles, what does "flux" refer to?
[Question ID = 10649]
- A state of disturbance from natural conditions [Option ID - 42590]
- Loss of matter or energy from the Earth system [Option ID - 42591]
- The loss of water vapour through the pores of plants [Option ID - 42592]
- The transfer of material or energy from one reservoir to another [Option ID - 42593]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- The transfer of material or energy from one reservoir to another [Option ID - 42593]
-
Which short-term cycle affects carbon dioxide and oxygen, and which long-term cycle affects carbon dioxide and oxygen?
[Question ID = 10650]
- Carbonate-silicate cycle [Option ID - 42594]
- Carbon-phosphate cycle [Option ID - 42595]
- Carbon-silicate cycle [Option ID - 42596]
- Carbon-sulphate cycle [Option ID - 42597]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- Carbonate-silicate cycle [Option ID - 42594]
-
What are the two fundamental processes that must be studied to understand ecosystem structure and functioning?
--- Content provided by FirstRanker.com ---
[Question ID = 10651]
- Flow of energy and cycling of chemical elements [Option ID - 42598]
- Photosynthesis and respiration [Option ID - 42599]
- Waste decomposition and cycling of energy [Option ID - 42600]
- All of these [Option ID - 42601]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- Flow of energy and cycling of chemical elements [Option ID - 42598]
-
What are the species that are most abundant or otherwise most important in an ecological community called?
[Question ID = 10652]
--- Content provided by FirstRanker.com ---
- Common [Option ID - 42602]
- Dominant [Option ID - 42603]
- Pioneer [Option ID - 42604]
- Predominant [Option ID - 42605]
Correct Answer :-
--- Content provided by FirstRanker.com ---
- Dominant [Option ID - 42603]
-
Which of the following processes lead to biological evolution?
[Question ID = 10653]
- Migration and genetic drift [Option ID - 42606]
- Mutation [Option ID - 42607]
- Natural selection [Option ID - 42608]
- All of these [Option ID - 42609]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- All of these [Option ID - 42609]
--- Content provided by FirstRanker.com ---
-
What are the dominant plants in a fresh water biome called?
[Question ID = 10654]
- Eichhornia sp. [Option ID - 42610]
- Phytoplankton [Option ID - 42611]
- Spirogryra [Option ID - 42612]
- Vallisneria sp. [Option ID - 42613]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- Vallisneria sp. [Option ID - 42613]
-
In general what percentage of energy received by green plants from the sun is converted into new plant tissues?
[Question ID = 10655]
- less than 5 [Option ID - 42614]
- less than 10 [Option ID - 42615]
- less than 15 [Option ID - 42616]
- less than 25 [Option ID - 42617]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- less than 5 [Option ID - 42614]
-
What are the main components of Integrated Pest Management (IPM)?
--- Content provided by FirstRanker.com ---
[Question ID = 10656]
- Biological control [Option ID - 42618]
- Land culture [Option ID - 42619]
- Chemical control [Option ID - 42620]
- All of these [Option ID - 42621]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- All of these [Option ID - 42621]
-
The dose of a toxin at which a specified percentage of test population dies is known as:
[Question ID = 10657]
--- Content provided by FirstRanker.com ---
- control [Option ID - 42622]
- lethal dose [Option ID - 42623]
- placebo dose [Option ID - 42624]
- toxic dose [Option ID - 42625]
Correct Answer :-
--- Content provided by FirstRanker.com ---
- lethal dose [Option ID - 42623]
-
Why is natural gas considered a better fossil fuel than oil?
[Question ID = 10658]
- Burning natural gas is cleaner than burning oil [Option ID - 42626]
- Gas commands a higher price than oil [Option ID - 42627]
- Gas is easier to transport [Option ID - 42628]
- Gas is a renewable resource [Option ID - 42629]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- Burning natural gas is cleaner than burning oil [Option ID - 42626]
--- Content provided by FirstRanker.com ---
-
Direct conversion of electricity using sunlight without an intermediate fluid medium is accomplished by which of the following?
[Question ID = 10659]
- Li-ion battery [Option ID - 42630]
- Photochemical cell [Option ID - 42631]
- Photovoltaic cell [Option ID - 42632]
- All of these [Option ID - 42633]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- Photovoltaic cell [Option ID - 42632]
-
Long-term plans expect to finish the clean-up work at Chernobyl by which of the following year?
[Question ID = 10660]
- 2016 [Option ID - 42634]
- 2026 [Option ID - 42635]
- 2036 [Option ID - 42636]
- 2065 [Option ID - 42637]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- 2065 [Option ID - 42637]
-
What is saltwater intrusion?
--- Content provided by FirstRanker.com ---
[Question ID = 10661]
- Excessive withdrawal of groundwater [Option ID - 42638]
- Invasion of saltwater into freshwater supplies [Option ID - 42639]
- Natural outflow of water from a natural spring [Option ID - 42640]
- All of these [Option ID - 42641]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- Invasion of saltwater into freshwater supplies [Option ID - 42639]
-
Which of the following compounds absorb earthshine in the wavelengths that typically pass through the atmospheric window?
[Question ID = 10662]
--- Content provided by FirstRanker.com ---
- Carbon dioxide [Option ID - 42642]
- Chloroflourocarbons [Option ID - 42643]
- Ozone [Option ID - 42644]
- Water vapour [Option ID - 42645]
Correct Answer:-
--- Content provided by FirstRanker.com ---
- Chloroflourocarbons [Option ID - 42643]
-
About what percentage of the solar energy is reflected back by ice?
[Question ID = 10663]
- 10-25% [Option ID - 42646]
- 30-45% [Option ID - 42647]
- 60-75% [Option ID - 42648]
- 80-95% [Option ID - 42649]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- 80-95% [Option ID - 42649]
--- Content provided by FirstRanker.com ---
-
Sulphur dioxide emissions are predominantly caused by which of the following?
[Question ID = 10664]
- 1) Burning coal [Option ID - 42650]
- 2) Automobile emissions [Option ID - 42651]
- 3) Both (1) and (2) [Option ID - 42652]
- 4) Photochemical smog [Option ID - 42653]
--- Content provided by FirstRanker.com ---
Correct Answer :-
- 3) Both (1) and (2) [Option ID - 42652]
This download link is referred from the post: DUET Last 10 Years 2011-2021 Question Papers With Answer Key || Delhi University Entrance Test conducted by the NTA
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---
--- Content provided by FirstRanker.com ---