Previous year MCQs

Environment & Ecology UPPSC 2017 GS-I
Question

Which one of the following is the correct order of biological organization ranging from organism to biosphere?

Answer & Solution

Answer: (Detailed Solution Below)

Option D: Population > Landscape > Community > Ecosystem

Detailed Solution:

The correct answer is “Population > Landscape > Community > Ecosystem”.
The correct order of biological organization ranging from organism to biosphere is Population → Landscape → Community → Ecosystem.

Similar Questions:

Match List I with List II and select the correct answer using the code given below:

List I [Area] - List II [Shifting Cultivation]

(A) Western Ghats - (a) Dahiya
(B) South-east Rajasthan - (b) Waltre
(C) North-east India - (c) Jhum
(D) Madhya Pradesh and Chhattisgarh - (d) Kumari
  1. A) A-d B-b C-c D-a
  2. B) A-c B-d C-a D-b
  3. C) A-d B-c C-b D-a
  4. D) A-c B-b C-a D-d
Which of the following is a correct statement?
  1. A) Energy flow in the biospheric ecosystem is unidirectional.
  2. B) Energy flow in the biospheric ecosystem is cyclic.
  3. C) Relative loss of energy in natural ecosystem decreases with increasing trophic levels.
  4. D) Species at progressively higher tropic levels appear to be less efficient in using available energy.
Which of the following is NOT a green house gas?
  1. A) Argon
  2. B) Chlorofluorocarbon
  3. C) Methane
  4. D) Carbon dioxide
Consider the following statement regarding global warming:

1. Melting of polar ice caps and subsequently rise in the sea level is the most important effect of global warming.
2. The sea level in likely to rise by one meter by 2070 AD if the present level of global warming is not controlled.
3. All the coral islands in the world will be submerged
4. By 2044 AD, Fiji is likely to be submerged and rise in the sea level by the same year will pose a grave danger to the Netherlands.
  1. A) 1, 2, 3 and 4
  2. B) 4 only
  3. C) 1, 2 and 4
  4. D) 1, 2 and 3
Incinerators are used for which of the following?
  1. A) Burning wastes
  2. B) Putting wastes into them
  3. C) For cutting green trees
  4. D) For making fertilizers
Given below are two statements, one is labelled as Assertion (A) and other as Reason (R) -

Assertion (A) - Population control is necessary to maintain the environment of the country.
Reason (R) - Due to the rapid increase in population, the environmental balance is maintained.

Select the correct answer using the code given below—
Code -
  1. A) Both (A) and (R) are true and (R) is correct explanation of (A)
  2. B) Both (A) and (R) are true but (R) is not correct explanation of (A)
  3. C) (A) is true but (R) is false
  4. D) (A)is false but (R )is true
Assertion (A): The Ganga is a highly polluted river.
Reason (R): The holier the river, the more polluted it is.

Select the correct answer from the following code:
  1. A) Both (A) and (R) are true and (R) is the correct explanation of (A)
  2. B) Both (A) and (R) are true, but (R) is not the correct explanation of (A)
  3. C) (A) is true, but (R) is false
  4. D) (A) is false, but (R) is true
Dichloro-diphenyl-trichloroethane (DDT) is a:
  1. A) Non-pollutant
  2. B) Non-biodegradable pollutant
  3. C) Biodegradable pollutant
  4. D) Biochemical pollutant
According to the National Family Health Survey – 3, private medical sector is the primary source of health care in India for:
  1. A) 50% of households in urban areas
  2. B) 60% of households in urban areas
  3. C) 70% of households in urban areas
  4. D) 80% of households in urban areas
Consider the following statements:

(a) The early chaityagrihas and viharas of Guntuphalli in West Godavari district are rock cut.
(b) The chaityas and viharas of Eastern deccan are usually rock cut.

Of these statements:
  1. A) Only a is correct
  2. B) Only b is correct
  3. C) Both a and b are correct
  4. D) Neither a nor b is correct
Which one of the following is not correctly matched? Nitrogen fixing agent – Crop
  1. A) Blue green algae – Paddy
  2. B) Rhizobium Leguminisarum – Pea
  3. C) Azotobacter – Wheat
  4. D) Azolla – Maize
Today the largest contributor to carbon dioxide (CO2) emissions is:
  1. A) China
  2. B) Japan
  3. C) Russia
  4. D) U.S.A.