131. It is correct for ecosystem.......
A. ( Plants, Animals, Microorganisms) + Abiotic environment
B. Community formed by various species present in a particular region.
C. Animal, plants and micro- organisms.
D. Abiotic factors
Answer : Option A
132. What is the original source of energy for the living organisms ?
133. In which of the following curd eating people are included ?
134. The functional efficiency of ecosystem is effected when decomposers are removed from it, because..
A. Energy flow will stop
B. Rest components decomposetion will become faster
C. Herbivous will not get sun light
D. Flow of nutrient will stop.
Answer : Option D
135. From which of the following detritus food chain will start ?
136. Which of the following is gaseous cycle ?
A. Sulphur cycle
B. Carbon cycle
C. Phosphorous cycle
D. Nitrogen cycle
Answer : Option C
137. At Each trophic level, in which form energy is lost ?
138. At Each trophic level, in which form energy is lost ?
139. Which Source of eutrophication is the modern source of phosphorus ?
140. It helps in absorbtion of phosphorous ?