Q.1.
Loss of energy from one tropic level to next higher tropic level is .... .... [A.M.U.2010]
Q.2.
The major forest type found in India is .... .... [PbP.M.T.2003]
Q.3.
Tropical dry deciduous forests occur in India in .... .... [M.P.P.M.T.1996]
Q.4.
Which one is not a natural factor for causing soil erosion .... .... [C.O.M.E.D.-K’s 2011]
Q.5.
Importance of ecosystem lies in .... .... [Har .P.M.T.1994]
Q.6.
Prolonged liberal irrigation of agricultural fields is likely to create problem of .... .... [C.B.S.E2005]
Q.7.
Which one lie at the level of primary consumers? .... .... [K.C.E.T.2004]
Q.8.
Uniform soil erosion by running water is .... .... [B.H.U.2001]
Q.9.
Possibility of coal in area is guessed through .... .... [M.P.P.M.T. 1998 ]
Q.10.
In an ecosystem, trophic level of man is .... .... [A.I.I.M.S.1999]
Q.11.
Match the following. .... .... [Manipal 2002 ]
a. western Ghats (i) western and eastern Himalayas
b. estuarine ecosystem (ii) Rajasthan,Punjab and parts of Gujarat
c. Indus plain (iii) west Bengal and Andaman
d. arctic zone (iv) cape Comorin
Q.12.
Slow rate of decomposition of fallen logs in nature is due to .... ..... [ C.B.S.E. 2008]
Q.13.
In energy ecosystem/food chain, the green plants are .... .... [C.B.S.E.1996]
Q.14.
Fossil fuel have been formed by a .... .... [D.P.M.T. 1996]
Q.15.
Biochemical cycle with gases phase is .... .... [D.P.M.T.2001]
Q.16.
Multinational source of energy is .... .... [C.B.S.E. 1999]
Q.17.
The most favoured habitat of a plant is called .... .... [J.I.P.M.E.R.1999]
Q.18.
Rhizophora occurs in .... .... [Odisha 2004]
Q.19.
Terracing helps in soil conservation in .... .... [C.P.M.T 2002]
Q.20.
First link in food chain is green because .... .... [M.P.P.M.T.2000]
Q.21.
Find out the odd one in nitrogen cycle .... .... [Guj C.E.T 2008]
Q.22.
Under Eltonian pyramid, lion is kept under .... .... [Bih .P.M.T. 2004]
Q.23.
Primary productivity of the ecosystem is most often limited by .... ..... [Odisha 2009]
Q.24.
Resin and turpentine are obtained from .... .... [M.P.P.M.T. 2010]
Q.25.
The limiting factor in soil nitrification is . ... [A.I.I.M.S.2000]
Q.26.
A renewable resource is .... .... [Manipal 2001]
Q.27.
In grass-deer-tiger food chain, grass biomass is one tone.The tiger biomass shall be .... .... [R.P.M.T.2006]
Q.28.
Which is man made ecosystem? .... .... [W.B. 2009]
Q.29.
Useful product of Rauwolfia serpentina .... .... [Wardha 2003]
Q.30.
An ecosystem with little primary productivity is .... .... [Odisha 2008]