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Sunday, March 12, 2023

Class 8 Geography Ch 4 Agriculture

 Agriculture

  1. (i) Agriculture is the practice of cultivating land, growing crops, and raising animals for food, fuel, and other products that are essential for human consumption and economic development.

(ii) The factors influencing agriculture are:

  • Climate: temperature, precipitation, and sunlight affect crop growth.
  • Soil: the type, fertility, and texture of soil influence crop productivity.
  • Topography: the physical features of land such as elevation and slope can affect agriculture.
  • Water: availability of water resources such as rivers, lakes, and groundwater is critical for crop growth.
  • Technology: advancements in farming practices, machinery, and irrigation systems can increase crop yield and efficiency.
  • Market: demand and prices for agricultural products impact the decisions of farmers.

(iii) Shifting cultivation is a traditional method of farming in which farmers clear a section of land, grow crops for a few years until the soil loses fertility, and then move on to another plot. The old plot is left fallow for a few years to regain fertility before being used again. The disadvantages of shifting cultivation are:

  • Soil erosion and depletion of soil fertility due to the repeated clearing of forests.
  • Loss of biodiversity as natural habitats are destroyed.
  • Vulnerability to climate change and unpredictable weather patterns.
  • Difficulty in market-oriented production and income generation.

(iv) Plantation agriculture is a form of commercial farming in which large-scale monoculture crops such as tea, coffee, rubber, sugarcane, and cotton are grown for export. It involves the use of capital-intensive inputs such as machinery, chemicals, and fertilizers. Plantation agriculture is prevalent in tropical and subtropical regions with adequate rainfall and fertile soils.

(v) Fibre crops are crops grown primarily for their fiber content, which is used in the production of textiles, paper, and other products. Some examples of fibre crops and the climatic conditions required for their growth are:

  • Cotton: requires a warm and humid climate with moderate rainfall.
  • Jute: grows best in a hot and humid climate with plenty of rainfall.
  • Hemp: can grow in a wide range of climatic conditions, but requires well-drained soil and moderate rainfall.
  1. (i) Agriculture is a primary activity in India because it is the primary source of livelihood for a majority of the population. Around 58% of the population is engaged in agriculture and related activities, and it contributes around 17-18% of the country's GDP.

(ii) Different crops are grown in different regions due to variations in climate, soil, and topography. India has a diverse agro-climatic zone that allows for the cultivation of a wide range of crops. For example, rice is predominantly grown in the eastern and southern regions with high rainfall, while wheat is grown in the northern regions with a dry winter season.

  1. (i) Primary activities are those activities that involve the extraction of natural resources, such as agriculture, fishing, mining, and forestry. Tertiary activities are those that provide services to people and businesses, such as banking, retail, transportation, and healthcare.

(ii) Subsistence farming is a type of farming in which farmers produce only enough food to feed themselves and their families. It is usually practiced in rural areas where there is limited access to modern technology and markets. Intensive farming, on the other hand, is a form of farming that involves the use of high inputs of labor, capital, and technology to maximize crop yields and profits. It is usually practiced in commercial farming operations.

 

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