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1896. Cross pollination or the process of deposition of pollen on the stigma of another is
A. Autogamy
B. Allogamy
C. Cleistogamy
D. Chasmogamy
Explanation:
1897. Which of the following are aerial modifications of stem ? 1. Phylloclade 2. Phyllode C. Cladode
A. 1 and 2
B. 2 and 3
C. 1 and 3
D. 1 only
Explanation:
1898. Given : Humidity - H High - A, Wind velocity - W Low - B Temperature - T The desert cooler is an appropriate cooling device for regions where
A. H - A, W - A, T - A
B. H - B, W - B, T - A
C. H - A, W - A, T - B
D. H - A, W - B, T - B
Explanation:
1899. Which of the following statements is correct ?
A. Dynamo converts electrical energy into heat energy and electric motor converts mechanical energy into electrical energy.
B. Dynamo converts mechanical energy into electrical energy and electric motor converts electrical energy into mechanical energy.
C. Both dynamo and electric motor convert electrical energy into mechanical energy.
D. Both dynamo and electric motor convert mechanical energy into electrical energy.
Explanation:
1900. The pulvinus in Touch-me-not plant plays an important role in
A. transpiration
B. leaf movement
C. photosynthesis
D. leaf fall
Explanation:
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