Climate & Soils — Set 2
Bihar GK · जलवायु और मिट्टी · Questions 11–20 of 50
The 'Tal' soil region is best suited for which type of cultivation?
Correct Answer: C. Rabi pulses
The 'Tal' soil region is best suited for the cultivation of Rabi pulses. Since the area remains waterlogged during the monsoon, crops are sown after the water recedes in winter. It is famous for high yields of lentils and gram.
In which month does the South-West Monsoon generally withdraw from Bihar?
Correct Answer: D. October
The South-West Monsoon generally begins to withdraw from Bihar in early October. This transition period is often marked by the 'Hathiya' Nakshatra rains. The weather gradually becomes cooler and drier after this withdrawal.
What mineral content is responsible for the color of Red Soil in Bihar?
Correct Answer: A. Iron oxide
The red color of the soil in parts of South Bihar is due to the presence of Iron oxide. This soil is typically found in the Kaimur and Rohtas plateau regions. It is generally less fertile and requires irrigation for agriculture.
Which part of Bihar falls under Agro-climatic Zone II?
Correct Answer: B. North-East
Agro-climatic Zone II covers the North-East alluvial plains of Bihar. It includes districts like Purnia, Katihar, and Kishanganj. This zone receives the highest rainfall in the state.
The 'Terai' soil belt runs parallel to the border of which country?
Correct Answer: C. Nepal
The Terai soil belt runs parallel to the northern border of Bihar with Nepal. It is a narrow strip characterized by sufficient moisture and tall grasses. The soil here ranges from sandy to loamy in texture.
What is the general trend of humidity in Bihar during the monsoon season?
Correct Answer: D. High
During the monsoon season, the humidity levels in Bihar remain consistently high. This is due to the moisture-laden winds coming from the Bay of Bengal. High humidity combined with heat often creates sultry weather conditions.
Which soil type is most prevalent in the Gangetic plains of Bihar?
Correct Answer: A. Alluvial Soil
Alluvial soil is the most prevalent type found throughout the Gangetic plains of Bihar. It is deposited by the Ganga river and its tributaries over centuries. This soil is highly fertile and supports diverse agriculture.
What is the approximate average annual rainfall in Bihar?
Correct Answer: B. 1200 mm
The average annual rainfall in Bihar is approximately 1200 mm (112-120 cm). However, this varies significantly from east to west. The rainfall is concentrated mainly in the monsoon months from June to September.
What is the texture of the soil found in the 'Diara' lands?
Correct Answer: C. Sandy Loam
The soil in the Diara lands is typically light and sandy loam in texture. These are the riverine islands or banks located inside the river course. The soil is fresh alluvium deposited annually by floodwaters.
The pre-monsoon thunderstorms in Bihar are locally known as?
Correct Answer: D. Mango Showers
The pre-monsoon thunderstorms in Bihar are locally known as Mango Showers (or Kalbaisakhi influence). They usually occur in April and May. These rains are beneficial for the ripening of mangoes and litchis.