Tag: decomposition in ecosystem

Questions Related to decomposition in ecosystem

The ability to produce organic compound in unit time is

  1. Leaching

  2. Productivity

  3. Poaching

  4. Conductivity


Correct Option: B
Explanation:
  • Productivity is the rate of production of new biomass by an individual, population. 
  • Productivity is a key source of economic growth and competitiveness.
  •  A country's ability to improve its standard of living depends almost entirely on its ability to raise its output per worker, i.e., producing more goods and services for a given number of hours of work.
  •  Hence, The ability to produce the organic compound in unit time is Productivity.
  • So, the correct answer is 'Productivity'.

If breakdown of the detritus by detritivores is called fragmentation, then degradation of the detritus into simple inorganic substances,by bacterial and fungal enzymes is known as 

  1. Leaching

  2. Humifiacation

  3. Catabolism

  4. Mineralization


Correct Option: C
Explanation:

If the breakdown of the detritus by detrivores is called fragmentation, then the degradation of the detritus into simple inorganic substances, by bacterial and fungal enzymes is known as catabolism.

Leaching is the process by which the water-insoluble inorganic nutrients go down into soil horizon and get precipitated as unavailable salts.
Humification is the process of accumulation of a dark-colored amorphous substance called humus.
Mineralization is the process in which humus is further degraded by some microbes and release of inorganic nutrients occur.
So, the correct answer is 'Catabolism'.

Rate of decomposition is controlled by:

  1. Chemical composition id detritus

  2. Food web

  3. Climatic factor

  4. More than one is correct


Correct Option: A

A large number of organic compounds can be decomposed by:

  1. Photoeterotorphs

  2. Pseudomonas

  3. Photolithotrophs

  4. Chemoheterotrophs


Correct Option: A

During the process of decomposition in which stage complex organic matter convert into inorganic ions and salts by fungi?

  1. Mineralization

  2. Catabolism

  3. Fragmentation

  4. All of the above


Correct Option: A

Decomposition is a type of ______.

  1. Aerobic respiration

  2. Anaerobic respiration

  3. Exothermal reaction

  4. None of these


Correct Option: A

In which treatment, microorganism decompose fine organic matter?

  1. Preliminary Treatment

  2. Biological Treatment

  3. Secondary Treatment

  4. Tertiary Treatment


Correct Option: B

Bacteria which carry out decomposition of organic matter is known as

  1. Anaerobic Bacteria

  2. Aerobic Bacteria

  3. Virus

  4. Rotifers


Correct Option: B

End product of 'aerobic' decomposition are:

  1. Unstable

  2. stable

  3. reactive

  4. Non Combustible


Correct Option: B