CBSE Questions for Class 12 Medical Biology Ecosystem Quiz 16 - MCQExams.com

Total amount of living material in an organism at different levels is known as
  • The pyramid of number
  • The pyramid of energy
  • The pyramid of Animals
  • The pyramid of biomass
Number of organisms of different trophic levels in an ecosystem is identified as
  • The pyramid of energy
  • The pyramid of number
  • The pyramid of biomass
  • The pyramid of Animals
In land filling method, to get biological degradation, moisture content should be less than
  • 80%
  • 50%
  • 60%
  • 20%
What is re-establishment of ecosystem?
  • Secondary succession
  • Primary succession
  • Ecological Function
  • Ecological system
Shale Gas is becoming more and more popular in today's Global Gas Exploration Market. Which among the following property of Shale Gas makes it a potential replacement to the conventional Natural gas?
  • Its distinct Chemical Property which makes it less polluting.
  • Its distinct physical property which makes it easy to store & handle.
  • It's cost effective production comparing to the conventional Gas.
  • It's availability in huge Reserves.
Breakdown of organic matter is known as:
  • Decomposition
  • Condensation
  • Precipitation
  • Infiltration
Which among the following expert panel related to recommend steps to preserve and rejuvenate the ecologically sensitive Western Ghats?
  • Devendra Pandey
  • Dr. Madhav Gadgill
  • Dr. M S Swaminathan
  • Dr. Vinod Rishi
The word 'ecology' (Okologie) was coined in 1866 by :
  • Charles Darwin
  • Robert Whittaker
  • Arthur Tansley
  • Ernst Haeckel
Functional characters of the community, which change during succession:-
(a) Energy use efficiency
(b) Nutrient conservation
(c) Complexity of food web
(d) Species diversity
  • a, b and c
  • b, c and d
  • only d
  • a and d only
In which among the following states, Government had identified maximum number of Ecologically Sensitive Zones under the Environment (Protection) Act, 1986?
  • Maharatsra
  • Andhra Pradesh
  • Tamil nadu
  • Karanataka
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