31 .The plant from which cocoa and chocolate are obtained is-
A.  Herb
B.  shrub
C.  Small tree
D.  very big tree
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32 .Crop shown at the commencement of the monsoon is called-
A.  Rabi crop
B.  Cash crop
C.  Kharif crop
D.  none of these
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33 .Plant which grow in saline soil are-
A.  Xerophytes
B.  Hydrophytes
C.  Halophytes
D.  Succulents
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34 .Transpiration in plants is a process of
A.  Photorespiration
B.  Water loss
C.  Food production
D.  Respiration
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35 .In soil, water that is readily available to plant roots is:
A.  Gravitational water
B.  Capillary water
C.  Hygroscopic water
D.  Bound water
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36 .Vaseline was applied to bothsurfaces of the leaves of aplant.Which of the followingprocess/processes would beaffected?
1. Photosynthesis
2. Rspiration
3. Transpiration
Select the correctanswer using the code given below:

A.  1 and 3 only
B.  2 only
C.  2 and 3 only
D.  1, 2 and 3
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37 .Willting of plants occurs due to excessive:
A.  Absorption
B.  Transpiration
C.  Respiration
D.  Guttation
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38 .Willting of plants occurs due to excessive:
A.  Absorption
B.  Transpiration
C.  Respiration
D.  Guttation
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39 .Transpiration differs from evopartion in-
A.  Rate of water loss
B.  Transpiration is a physiological process while evaporation is physical process.
C.  Transpiration is physical process while evaporation is a physiological process.
D.  Frequency of water loss.
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40 .Dwarf plants can be made taller by applying-
A.  Gibberellins
B.  Auxins
C.  Cytokinins
D.  Dormin
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41 .The oxygen in photsythesis is released from-
A.  CO2
B.  H2O
C.  Both CO2 & H2O
D.  Chlorophyll
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42 .Photolysis of water involves-
A.  Excitement of water
B.  Evoluation of oxygen
C.  Breakdown of water by light
D.  Splitting of water into its ion H+ and OH-
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43 .An element present in chlorophyll -
A.  Ca
B.  Fe
C.  Mg
D.  S
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44 .Respiration is-
A.  Endothermic process
B.  Exothermic process
C.  Anabolic process
D.  Endagenic process
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45 .Fermentation is -
A.  Anearobic respiration
B.  Incomplete oxidation of carbohydrate
C.  Complete oxidation carbohydrate
D.  None of above
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