51.
Which among the following is the major cause of soil erosion and land degradation in South 24 Parganas?

52.
Which among the following is a cause of massive soil erosion in West Bengal?

53.
When do the South-West monsoon winds blow in India?

54.
West Bengal gets most of its rainfall from

55.
The summer monsoon normally arrives in South Bengal during

56.
The soil of the Sunderbans of West Bengal is

57.
The soil of Bankura district in West Bengal is

58.
The soil at the foothills of the Darjeeling Himalayas is called

59.
The monsoon reaches West Bengal in the month of ....... in the middle part (second fortnight) of the month.

60.
The climatic conditions caused by tropical cyclones in South and South-West of Bengal is known as