51.
Photosynthesis is

52.
India's rank in fertilisers consumption in the world is

53.
In plants water moves from

54.
Gypsum contains

55.
Which of the following micronutrients mostly deficit in Indian soil?

56.
The yellow rust of wheat is caused by

57.
Which of these is endoparasitic Powdery mildew fungus?

58.
The causal organism of bunchy top of banana is transmitted by

59.
Factor which is not normally limiting in photosynthesis is

60.
Greatest producers of organic matter are