Short Answer TypeAn electrostatic precipitator in a thermal power plant is not able to generate high voltage of several thousands. Write the ecological implication because of it.
What is a trophic level in an ecosystem? What is ‘Standing crop’ with reference to it?
Tropic level: Organisms occupy a place in the natural surroundings or in a community according to their feeding relationship with other organisms. Based on the source of their nutrition or food, organisms occupy a specific place in the food chain and this is known as a trophic level.
Each trophic level has a certain mass of living material at a particular time and this is called as Standing crop. It is measured as the mass of living organisms (biomass) or the number in a unit area.
Multiple Choice QuestionsBiotic factors are :
chemical factors of soil which affect life
physical factors of soil which affect life
all living organisms which influence other organisms
factors of atmosphere which affect life
Which of the following would appear as the pioneer organisms on bare rocks?
Liverworts
Mosses
Green algae
Green algae
Secondary productivity is rate of formation of new organic matter by
producer
parasite
consumer
consumer
During sewage treatment, biogas are produced, which include
methane, hydrogen sulphide and carbon dioxide
methane, oxygen and hydrogen sulphide
hydrogen sulphide, methane and sulphur dioxide
hydrogen sulphide, methane and sulphur dioxide
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