IASbaba's Daily Static Quiz
For Previous Static Quiz (ARCHIVES) – CLICK HERE
DAILY STATIC QUIZ will cover all the topics of Static/Core subjects – Polity, History, Geography, Economics, Environment and Science and technology.
This is a part of our recently launched, NEW INITIATIVE IASbaba’s INTEGRATED REVISION PLAN (IRP) 2020 – Road Map for the next 100 Days! FREE INITIATIVE!
We will make sure, in the next 4 months not a single day is wasted. All your energies are channelized in the right direction. Trust us! This will make a huge difference in your results this time, provided that you follow this plan sincerely every day without fail.
Gear up and Make the Best Use of this initiative.
Do remember that, “the difference between Ordinary and EXTRA-Ordinary is PRACTICE!!”
To Know More about the Initiative -> CLICK HERE
SCHEDULE/DETAILED PLAN – > CLICK HERE
Important Note
- After completing the 10 questions, click on ‘View Questions’ to check your score, time taken and solutions.
- Don’t forget to post your marks in the comment section. Also, let us know if you enjoyed today’s test 🙂
UPSC Static Quiz - 2020: IASbaba's Daily Static Quiz - ENVIRONMENT [Day 59]
Test-summary
0 of 10 questions completed
Questions:
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
Information
To view Solutions, follow these instructions:
- Click on – ‘Start Test’ button
- Solve Questions
- Click on ‘Test Summary’ button
- Click on ‘Finish Test’ button
- Now click on ‘View Questions’ button – here you will see solutions and links.
You have already completed the test before. Hence you can not start it again.
Test is loading...
You must sign in or sign up to start the test.
You have to finish following test, to start this test:
Results
0 of 10 questions answered correctly
Your time:
Time has elapsed
You have scored 0 points out of 0 points, (0)
Categories
- Not categorized 0%
- 1
- 2
- 3
- 4
- 5
- 6
- 7
- 8
- 9
- 10
- Answered
- Review
-
Question 1 of 10
1. Question
Consider the following statements:
- Primary productivity is constant across different types of ecosystems.
- Secondary productivity is defined as the rate of formation of new organic matter by consumers.
Which of the statements given above is/are NOT CORRECT?
Correct
Solution (a)
Primary productivity depends on the plant species inhabiting a particular area. It also depends on a variety of environmental factors, availability of nutrients and photosynthetic capacity of plants. Therefore, Primary Productivity varies in different types of ecosystems.
Hence Statement 1 is incorrect.
Secondary productivity is defined as the rate of formation of new organic matter by consumers.
Hence Statement 2 is correct.
Incorrect
Solution (a)
Primary productivity depends on the plant species inhabiting a particular area. It also depends on a variety of environmental factors, availability of nutrients and photosynthetic capacity of plants. Therefore, Primary Productivity varies in different types of ecosystems.
Hence Statement 1 is incorrect.
Secondary productivity is defined as the rate of formation of new organic matter by consumers.
Hence Statement 2 is correct.
-
Question 2 of 10
2. Question
Consider the following statements:
- Primary Carnivores are also the primary consumers.
- Death of organism is the beginning of the detritus food chain/web.
Which of the statements given above is/are correct?
Correct
Solution (b)
Herbivores are considered as primary consumers. Primary carnivores can be considered as secondary consumers.
Hence Statement 1 is incorrect.
Death of organism is the beginning of the detritus food chain/web.
Hence Statement 2 is correct.
Incorrect
Solution (b)
Herbivores are considered as primary consumers. Primary carnivores can be considered as secondary consumers.
Hence Statement 1 is incorrect.
Death of organism is the beginning of the detritus food chain/web.
Hence Statement 2 is correct.
-
Question 3 of 10
3. Question
Consider the following statements:
- Each trophic level has a certain mass of living material at a particular time called as the standing crop.
- The biomass of a species is expressed only in terms of dry weight.
Which of the statements given above is/are correct?
Correct
Solution (a)
Each trophic level has a certain mass of living material at a particular time called as the standing crop. The standing crop is measured as the mass of living organisms (biomass) or the number in a unit area.
Hence Statement 1 is correct.
The biomass of a species is expressed in terms of fresh or dry weight.
Hence Statement 2 is incorrect.
Incorrect
Solution (a)
Each trophic level has a certain mass of living material at a particular time called as the standing crop. The standing crop is measured as the mass of living organisms (biomass) or the number in a unit area.
Hence Statement 1 is correct.
The biomass of a species is expressed in terms of fresh or dry weight.
Hence Statement 2 is incorrect.
-
Question 4 of 10
4. Question
Consider the following statements:
- The pyramid of biomass in sea is generally inverted.
- A given species may occupy more than one trophic level in the same ecosystem at the same time.
Which of the statements given above is/are NOT CORRECT?
Correct
Solution (d)
The pyramid of biomass in sea is generally inverted, because the biomass of fishes far exceeds that of phytoplankton.
Hence Statement 1 is correct.
A given species may occupy more than one trophic level in the same ecosystem at the same time. For example, a sparrow is a primary consumer when it eats seeds, fruits, peas, and a secondary consumer when it eats insects and worms.
Hence Statement 2 is correct.
Incorrect
Solution (d)
The pyramid of biomass in sea is generally inverted, because the biomass of fishes far exceeds that of phytoplankton.
Hence Statement 1 is correct.
A given species may occupy more than one trophic level in the same ecosystem at the same time. For example, a sparrow is a primary consumer when it eats seeds, fruits, peas, and a secondary consumer when it eats insects and worms.
Hence Statement 2 is correct.
-
Question 5 of 10
5. Question
Consider the following statements:
- Atmospheric inputs of carbon through rainfall are much smaller than phosphorus inputs.
- Gaseous exchanges of phosphorus between organism and environment are negligible.
Which of the statements given above is/are correct?
Correct
Solution (b)
Atmospheric inputs of phosphorus through rainfall are much smaller than carbon inputs.
Hence Statement 1 is incorrect.
Gaseous exchanges of phosphorus between organism and environment are negligible.
Hence Statement 2 is correct.
Incorrect
Solution (b)
Atmospheric inputs of phosphorus through rainfall are much smaller than carbon inputs.
Hence Statement 1 is incorrect.
Gaseous exchanges of phosphorus between organism and environment are negligible.
Hence Statement 2 is correct.
-
Question 6 of 10
6. Question
Which of the following best defines the permaculture?
Correct
Solution (b)
- Permaculture is the conscious design and maintenance of agriculturally productive ecosystems which have the diversity, stability, and resilience of natural ecosystems.
- It is the harmonious integration of landscape and people —providing their food, energy, shelter, and other material and non-material needs in a sustainable way.
- The term was coined by Bill Mollison in 1978.
Hence Statement b is correct
Incorrect
Solution (b)
- Permaculture is the conscious design and maintenance of agriculturally productive ecosystems which have the diversity, stability, and resilience of natural ecosystems.
- It is the harmonious integration of landscape and people —providing their food, energy, shelter, and other material and non-material needs in a sustainable way.
- The term was coined by Bill Mollison in 1978.
Hence Statement b is correct
-
Question 7 of 10
7. Question
Which of the following statements correctly explains the 10 per cent law in context of ecology?
Correct
Solution (a)
- The Ten percent law of transfer of energy from one trophic level to the next was introduced by Raymond Lindeman (1942).
- According to this law, during the transfer of energy from organic food from one trophic level to the next, only about ten percent of the energy from organic matter is stored as flesh.
Hence Statement a is correct
Incorrect
Solution (a)
- The Ten percent law of transfer of energy from one trophic level to the next was introduced by Raymond Lindeman (1942).
- According to this law, during the transfer of energy from organic food from one trophic level to the next, only about ten percent of the energy from organic matter is stored as flesh.
Hence Statement a is correct
-
Question 8 of 10
8. Question
Which of the following statements regarding Ecological succession is/are correct?
- Hydrarch succession takes place in wetter areas and the successional series progress from hydric to the mesic conditions.
- Xerarch succession takes place in dry areas and the series progress from xeric to mesic conditions.
Select the correct answer using the code given below:
Correct
Solution (c)
- The gradual and fairly predictable change in the species composition of a given area is called ecological succession
- Based on the nature of the habitat – whether it is water (or very wet areas) or it is on very dry areas – succession of plants is called hydrach or xerarch, respectively.
Hydrarch succession takes place in wetter areas and the successional series progress from hydric to the mesic conditions.
Hence Statement 1 is correct
Xerarch succession takes place in dry areas and the series progress from xeric/dry to mesic conditions.
Hence Statement 2 is correct
Incorrect
Solution (c)
- The gradual and fairly predictable change in the species composition of a given area is called ecological succession
- Based on the nature of the habitat – whether it is water (or very wet areas) or it is on very dry areas – succession of plants is called hydrach or xerarch, respectively.
Hydrarch succession takes place in wetter areas and the successional series progress from hydric to the mesic conditions.
Hence Statement 1 is correct
Xerarch succession takes place in dry areas and the series progress from xeric/dry to mesic conditions.
Hence Statement 2 is correct
-
Question 9 of 10
9. Question
“The entire complement of species of organisms, plants and animals found within a given region”. Select the correct term related to the phrase:
Correct
Solution (c)
Community is an assemblage or association of populations of two or more different species occupying the same geographical area and in a particular time, also known as a biocoenosis.
Biotype: A biotope is an area of uniform environmental conditions providing a living place for a specific assemblage of plants and animals. Biotope is almost synonymous with the term habitat.
Biota: The entire complement of species of organisms, plants, and animals, found within a given region.
Biome: A large terrestrial ecosystem characterized by specific plant communities and formations; usually named after the predominant vegetation in the region.
Biosphere: The totality of life on or near Earth’s surface.
Incorrect
Solution (c)
Community is an assemblage or association of populations of two or more different species occupying the same geographical area and in a particular time, also known as a biocoenosis.
Biotype: A biotope is an area of uniform environmental conditions providing a living place for a specific assemblage of plants and animals. Biotope is almost synonymous with the term habitat.
Biota: The entire complement of species of organisms, plants, and animals, found within a given region.
Biome: A large terrestrial ecosystem characterized by specific plant communities and formations; usually named after the predominant vegetation in the region.
Biosphere: The totality of life on or near Earth’s surface.
-
Question 10 of 10
10. Question
Consider the following statements with regard to the general characteristics for Lake Ecology:
- The nutrient content is very low in Oligotrophic whereas nutrient content is very high in Eutrophic
- Oxygen in the hypolimnion is present in Eutrophic whereas is absent in Oligotrophic.
Which of the above statements is/are correct?
Correct
Solution (a)
On the basis of their nutrient content, they are categorized as Oligotrophic (very low nutrients), Mesotrophic (moderate nutrients) and Eutrophic (highly nutrient rich).
Vast majority of lakes in India are either Eutrophic or Mesotrophic because of the nutrients derived from their surroundings or organic waste entering them.
The nutrient content is very low in Oligotrophic whereas nutrient content is very high in Eutrophic
Hence Statement 1 is correct
Oxygen in the hypolimnion (bottom layer) is absent in Eutrophic whereas is present in Oligotrophic.
Hence Statement 2 is incorrect
Incorrect
Solution (a)
On the basis of their nutrient content, they are categorized as Oligotrophic (very low nutrients), Mesotrophic (moderate nutrients) and Eutrophic (highly nutrient rich).
Vast majority of lakes in India are either Eutrophic or Mesotrophic because of the nutrients derived from their surroundings or organic waste entering them.
The nutrient content is very low in Oligotrophic whereas nutrient content is very high in Eutrophic
Hence Statement 1 is correct
Oxygen in the hypolimnion (bottom layer) is absent in Eutrophic whereas is present in Oligotrophic.
Hence Statement 2 is incorrect
