| 41. |
Fluorosis is _____
|
||||||||
|
Answer:
Option (a) |
| 42. |
Saprotrophs feed on ____
|
||||||||
|
Answer:
Option (b) |
| 43. |
When is world environment day celebrated
|
||||||||
|
Answer:
Option (b) |
| 44. |
Sundar lal bahuguna is known for his association with
|
||||||||
|
Answer:
Option (b) |
| 45. |
Which of the following can be said to be the example of secondary succession
|
||||||||
|
Answer:
Option (d) |
| 46. |
Discharge of organic waste water into river will
|
||||||||
|
Answer:
Option (a) |
| 47. |
The study of interrelationship between living organisms and their physical and biological environment is termed as
|
||||||||
|
Answer:
Option (a) |
| 48. |
A green house has higher temperature inside than outside which is due to
|
||||||||
|
Answer:
Option (a) |
| 49. |
The programme managed by Forest department of Gujarat for planting trees on non-forest lands to improve green cover of state is
|
||||||||
|
Answer:
Option (d) |
| 50. |
Which of these is not a physical quality parameter for determining the quality of water
|
||||||||
|
Answer:
Option (c) |