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Match List-I with List-II: List-I A. Tertiary consumer B. Secondary consumer C. Primary consumer D. Primary producer List-II I. Grass II. Lion III. Wolf IV. Goat
In an ecosystem, if the Net Primary Productivity (NPP) of first trophic level is 100x (kcal m−2) yr−1, what would be the GPP (Gross Primary Productivity) of the third trophic level of the same ecosystem?
Which of the following is the unit of productivity of an ecosystem?
Given below are two statements: Statement I: In an ecosystem, there is unidirectional flow of energy of sun from producers to consumers. Statement II: Ecosystems are exempted from 2nd law of thermodynamics. In the light of the above statements, choose the most appropriate answer from the options given below:
Who is known as the father of Ecology in India?
Given below are two statements: Statement I: The primary source of energy in an ecosystem is solar energy. Statement II: The rate of production of organic matter photosynthesis in an ecosystem is called net primary productivity (NPP). In the light of the above statements, choose the most appropriate answer from the options given below.
Given below are two statements: Statement I: Rain forests, which used to cover more than 14% of the earth's land surface, are now reduced to 6%. Statement II: The Amazon rain forest has the greatest biodiversity on earth. In light of the above statements, choose the correct answer from the options given below:
Western Ghats have a large number of plant and animal species that are not found anywhere else. Which of the following terms will you use to notify such species?
The pollution due to oxides of sulphur gets enhanced due to the presence of: (a) particulate matter (b) ozone (c) hydrocarbons (d) hydrogen peroxide. Choose the most appropriate answer from the options given below:
If radius of second Bohr orbit of the $\text{He}^+$ ion is $105.8 \text{ pm}$, what is the radius of third Bohr orbit of $\text{Li}^{2+}$ ion?
The correct IUPAC name of the following compound is
Find the emf of the cell in which the following reaction takes place at $298$ K: $\text{Ni(s)} + 2\text{Ag}^+ (0.001 \text{M}) \rightarrow \text{Ni}^{2+} (0.001 \text{M}) + 2\text{Ag(s)}$
Compound X on reaction with $O_3$ followed by $Zn/H_2O$ gives formaldehyde and 2-methylpropanal as products. The compound X is
The order of energy absorbed which is responsible for the color of complexes (A) $[Ni(H_2O)_2(en)_2]^{2+}$ (B) $[Ni(H_2O)_4(en)]^{2+}$ and (C) $[Ni(en)_3]^{2+}$ is
Which of the following is not a method of ex situ conservation?
In the neutral or faintly alkaline medium, $KMnO_4$ oxidises iodide into iodate. The change in oxidation state of manganese in this reaction is from
Match List -I with List-II. List -I (Ores) (a) Haematite (b) Magnetite (c) Calamine (d) Kaolinite List -II (Composition) (i) $Fe_3O_4$ (ii) $ZnCO_3$ (iii) $Fe_2O_3$ (iv) $[Al_2(OH)_4Si_2O_5]$ Choose the correct answer from the options given below:
For the above reaction at 298 K, $K_c$ is found to be $3.0 \times 10^{-59}$. If the concentration of $O_2$ at equilibrium is $0.040\ M$ then concentration of $O_3$ in $M$ is
The decline in the population of Indian native fishes due to the introduction of Clarias gariepinus in river Yamuna can be categorised as:
Which of the following is the most important cause for animals and plants being driven to extinction?