Ecosystem And Biosphere
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76 The ability to fix atmospheric nitrogen is found in the
A
Leaves of some crop plants
B
Some marine red algae
C
Some blue-green algae
D
Cholera
81 Where are the Eucalyptus trees found in abundance ?
A
Mizo Hills
B
Naga Hills
C
Manipur Hills
D
Nilgiri Hills
82 Which of the following elements is obtained from the sea algae ?
A
Argon
B
Sulphur
C
Vanadium
D
Iodine
85 From which part of the plant is clove, the commonly used spice, obtained ?
A
Fruit
B
Flower bud
C
Stem
D
Root
86 Hashish is obtained from a plant. From which part of the plant is it obtained ?
A
Leaves
B
Stem
C
Exudate from leaves and female inflorescences.
D
Exudate from stem and
male inflorescences.