Climate & Soils — Set 5
Bihar GK · जलवायु और मिट्टी · Questions 41–50 of 50
Which soil type is most suitable for Jute cultivation in Purnia and Katihar?
Correct Answer: A. Sandy Loam / New Alluvium
Sandy Loam or New Alluvial soil is most suitable for Jute cultivation. The districts of Purnia and Katihar have this soil type in abundance. High humidity and this soil texture create ideal conditions for the crop.
Crops sown in October-November and harvested in spring are called?
Correct Answer: B. Rabi
Crops sown in October-November are called Rabi crops. Wheat, gram, and mustard are major Rabi crops in Bihar. They rely on soil moisture from the late monsoon and winter rains.
Which property is high in the 'Kewal' clay soil of South Bihar?
Correct Answer: C. Water retention
The 'Kewal' clay soil has a very high water retention capacity. This allows it to hold moisture for a long time, which is beneficial for rice. However, it becomes very hard and cracks when it dries out completely.
Around which date does the monsoon usually enter Bihar?
Correct Answer: D. 10-15 June
The monsoon usually enters Bihar around 10-15 June. It arrives first in the eastern districts like Kishanganj. It gradually covers the entire state by the end of June.
Which river is primarily responsible for the massive silt deposits in North Bihar?
Correct Answer: A. Kosi
The Kosi river is primarily responsible for massive silt deposits in North Bihar. It carries a heavy sediment load from the Himalayas. This siltation often causes the river to change its course, leading to floods.
Which agricultural crop benefits most from the 'Kalbaisakhi' rains?
Correct Answer: B. Jute
Jute cultivation benefits significantly from the 'Kalbaisakhi' rains. These pre-monsoon showers provide necessary moisture for the early growth of the crop. Paddy nurseries also benefit from this rainfall.
Which soil type develops in areas with high temperature and heavy rainfall causing leaching?
Correct Answer: C. Laterite
Laterite soil develops in areas with high temperature and heavy rainfall due to leaching. In Bihar, small patches are found in the border regions. It is generally brick-red and less fertile.
How does the rainfall pattern change as one moves from East to West in Bihar?
Correct Answer: D. Decreases
Rainfall in Bihar decreases as one moves from East to West. The monsoon winds lose moisture as they travel westward from the Bay of Bengal. Consequently, districts like Kishanganj receive more rain than Aurangabad.
The Kaimur plateau is characterized by which type of soil?
Correct Answer: A. Red Sandy Soil
The Kaimur plateau is characterized by Red Sandy Soil. This soil is derived from the weathering of the plateau's rocks. It is generally poor in nutrients and requires fertilizer for farming.
Geographically, Bihar is located in which climatic zone?
Correct Answer: B. Sub-tropical
Geographically, Bihar is located in the Sub-tropical climatic zone. It lies completely north of the Tropic of Cancer. The climate combines characteristics of both humid subtropics and the monsoon system.