Insights Static Quiz -409, 2019
Environment
INSIGHTS STATIC QUIZ 2019
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Question 1 of 5
1. Question
Which of the following are an ecotone?
- Mangroves
- Grassland
- Forest
- Estuary
- Coral Reef
Select the correct answer code:
Correct
Solution: b)
An ecotone is a transition area between two biomes. It is where two communities meet and integrate. It may be narrow or wide, and it may be local (the zone between a field and forest) or regional (the transition between forest and grassland ecosystems).
- For e.g. the mangrove forests represent an ecotone between marine and terrestrial ecosystem, grassland (between forest and desert), estuary (between fresh water and salt water) and river bank or marsh land (between dry and wet).
Incorrect
Solution: b)
An ecotone is a transition area between two biomes. It is where two communities meet and integrate. It may be narrow or wide, and it may be local (the zone between a field and forest) or regional (the transition between forest and grassland ecosystems).
- For e.g. the mangrove forests represent an ecotone between marine and terrestrial ecosystem, grassland (between forest and desert), estuary (between fresh water and salt water) and river bank or marsh land (between dry and wet).
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Question 2 of 5
2. Question
Which of the following statements is/are correct about a biosphere reserve?
- A biosphere reserve focuses on protection of a single species rather than the entire ecosystem.
- Gujarat has no biosphere reserve.
Select the correct answer code:
Correct
Solution: d)
Biosphere reserve focuses on conservation of whole biome rather than a species. Great Rann of Kutch biosphere is located in Gujarat.
Incorrect
Solution: d)
Biosphere reserve focuses on conservation of whole biome rather than a species. Great Rann of Kutch biosphere is located in Gujarat.
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Question 3 of 5
3. Question
Which of the following will lead to fluctuations in the population density in a given habitat during a given period?
- Natality
- Mortality
- Immigration
- Emigration
Select the correct answer codes:
Correct
Solution: d)
The density of a population in a given habitat during a given period, fluctuates due to changes in four basic processes, two of which (natality and immigration) contribute to an increase in
population density and two (mortality and emigration) to a decrease.
Incorrect
Solution: d)
The density of a population in a given habitat during a given period, fluctuates due to changes in four basic processes, two of which (natality and immigration) contribute to an increase in
population density and two (mortality and emigration) to a decrease.
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Question 4 of 5
4. Question
Consider the following statements regarding carrying capacity of a biological species in an environment.
- The carrying capacity is the number of individuals an environment can support without significant negative impacts to the given organism and its environment.
- Below carrying capacity, populations typically decrease, while above, they typically increase.
- The carrying capacity of an environment may vary for different species and may change over time.
Which of the above statements is/are correct?
Correct
Solution: b)
The carrying capacity is the number of individuals an environment can support without significant negative impacts to the given organism and its environment. Below carrying capacity, populations typically increase, while above, they typically decrease.
The carrying capacity of an environment may vary for different species and may change over time due to a variety of factors including: food availability, water supply, environmental conditions and living space.
Incorrect
Solution: b)
The carrying capacity is the number of individuals an environment can support without significant negative impacts to the given organism and its environment. Below carrying capacity, populations typically increase, while above, they typically decrease.
The carrying capacity of an environment may vary for different species and may change over time due to a variety of factors including: food availability, water supply, environmental conditions and living space.
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Question 5 of 5
5. Question
Which of the following fall under the category of Primary pollutants?
- Oxides of Sulphur
- Particulate Matter
- POPs (Persistent Organic Pollutants)
- Chlorofluorocarbons
- Ground Level Ozone
Select the correct code.
Correct
Solution: a)
A primary pollutant is an air pollutant emitted directly from a source. They are “directly” emitted from the processes such as fossil fuel consumption, volcanic eruption and factories. The major primary pollutants are Oxides of Sulphur, Oxides of Carbon, Oxides of Nitrogen, Methane, Particulate Matter, Ammonia, Chlorofluorocarbons, Toxic metals etc.
A secondary pollutant is not directly emitted as such, but forms when other pollutants (primary pollutants) react in the atmosphere. Important secondary Air Pollutants are Ground Level Ozone, Smog and POPs (Persistent Organic Pollutants).
Incorrect
Solution: a)
A primary pollutant is an air pollutant emitted directly from a source. They are “directly” emitted from the processes such as fossil fuel consumption, volcanic eruption and factories. The major primary pollutants are Oxides of Sulphur, Oxides of Carbon, Oxides of Nitrogen, Methane, Particulate Matter, Ammonia, Chlorofluorocarbons, Toxic metals etc.
A secondary pollutant is not directly emitted as such, but forms when other pollutants (primary pollutants) react in the atmosphere. Important secondary Air Pollutants are Ground Level Ozone, Smog and POPs (Persistent Organic Pollutants).
