CBSE Questions for Class 10 Geography Agriculture Quiz 2 - MCQExams.com

Nitrogen is the most essential nutrient for plant. Pulses can utilize nitrogen present in the soil by symbiotic relation with nitrogen fixing bacteria that live inside roots of the plants.

Pulses also improve fertility of soil and hence are grown as rotation crops in between the different crops.

• Pulses need less moisture and survive even in dry conditions. Being leguminous crops, most crops except ahar help in restoring soil fertility by fixing nitrogen from the air. Therefore, these are mostly grown in rotation with other crops. 
  
• Some examples of pulses include moong, masoor, urad, etc.
  
• Pulses grow in pods and come in a variety of shapes, sizes and colors.
  
• Pulses are very high in protein and fibre, and are low in fat. 
  

Primitive subsistence agriculture is practised on small patches of land with the help of primitive tools like hoe, dao and digging sticks, and family/ community labour. This type of farming depends upon monsoon, natural fertility of the soil and suitability of other environmental conditions to the crops grown. 

Cucumber is one of the important Zaid crops that is grown in the months between March and June. It is a summer crop and requires dry weather. It is very sensitive to frost conditions and yield is very high in moderate warm temperatures.

Sandy loamy soils and clay soils with high organic matter is proved good for the cultivation.

Subsistence farming is characterised by small and scattered land holdings and the use of primitive tools, like a hoe and digging sticks by family members. As the farmers are poor, they do not use fertilisers or (HYV) seeds in their fields. Most of the food production is consumed by the farmers and their families.

Gram is a rabi crop and is most important of all the pulses and accounting for 37 per cent of the total production and 28.28 per cent of the total area of pulses in India.

Basmati rice is long, slender aromatic rice basically from Indian subcontinent. During 2015-16, export of non-basmati and Basmati rice has been assumed to be 8.0 million and 4 million tonnes respectively.

• Green Revolution is the Intensive plan of the 1960s to increase crop yields in developing countries by introducing higher-yielding strains of plant and new fertilizers
  
• It developed new strains of high yield variety seeds, mainly wheat and rice and also millet and corn.
  
• The green revolution of wheat and rice left pulses becoming the next preference. 
  

• Wheat is considered as the major Rabi crop of Punjab which is a winter crop.
  
• Top three states producing wheat are Uttar Pradesh, Punjab and Madhya Pradesh
  
• After Rice, wheat is the second most important crop of India.
  
• The staple food in north and north western India is wheat.
  

• Rice is the important staple food crop of India which feeds more than half of our population.
  
• India is next to China in the world in the production of rice
  
• Rice is grown in approximately 34% of the overall cropped area of the country.
  
• Rice production comprises 42% of the overall food crop production in the country.
  

• A large variety of oil seeds are produced in India such as groundnut, castor seed, sesamum, rapeseed and mustard, linseed, Soybean, sunflower, niger seed, and safflower.
  
• India’s largest oilseed producing state is Gujarat