Natural Resources and Food Supply Quiz

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Questions and Answers

What is a major consequence of overgrazing?

  • Enhanced water retention
  • Increased soil fertility
  • Loss of vegetation cover (correct)
  • Improved plant diversity

Which of the following is a benefit of modern agriculture?

  • Soil erosion
  • Excessive pesticide use
  • Higher production rates (correct)
  • Increased salinity in soil

What problem is associated with water logging?

  • Better crop yield
  • Enhanced soil aeration
  • Improved nutrient absorption
  • Excess water accumulation (correct)

What adverse effect is linked to the excessive use of fertilizers?

<p>Nutrient imbalance (B)</p> Signup and view all the answers

How does salinity affect crop production?

<p>It leads to reduced crop production (D)</p> Signup and view all the answers

What is a consequence of urbanization on agricultural land?

<p>Reduction in agricultural land area (D)</p> Signup and view all the answers

Which of the following results from mechanical strength loss in soil?

<p>Decreased soil stability (B)</p> Signup and view all the answers

What impact do pesticides have on non-target species?

<p>They harm beneficial species (A)</p> Signup and view all the answers

Which factor does NOT contribute to the water logging problem?

<p>Soil compaction (C)</p> Signup and view all the answers

What factor is primarily responsible for farmers' financial struggles in purchasing quality inputs?

<p>Financial problems (B)</p> Signup and view all the answers

What defines natural resources?

<p>Resources that exist in the environment without human intervention. (D)</p> Signup and view all the answers

Which of the following is NOT a type of natural resource listed?

<p>Communication Resources (A)</p> Signup and view all the answers

What is considered a food resource?

<p>Anything that can be consumed to satisfy hunger and provide energy. (C)</p> Signup and view all the answers

What was a significant outcome of the green revolution in India?

<p>Remarkable increase in food production. (A)</p> Signup and view all the answers

Which factor is crucial for ensuring a sustainable world food supply?

<p>Use of quality seeds and proper irrigation. (B)</p> Signup and view all the answers

What was the main goal of the White Revolution in India?

<p>To enhance milk production through cooperative movements. (C)</p> Signup and view all the answers

What challenge remains despite the advancements in food production?

<p>Inability to keep up with the growing population's needs. (A)</p> Signup and view all the answers

Which of the following practices does NOT contribute to world food supply?

<p>Avoiding the use of modern agricultural techniques. (D)</p> Signup and view all the answers

Which resource is classified under mineral resources?

<p>Natural gas (D)</p> Signup and view all the answers

Which type of resource is NOT related to food?

<p>Transportation systems (D)</p> Signup and view all the answers

Flashcards

Urbanization's effect on farmland

Urban growth reduces the amount of land available for farming.

Modern agriculture benefits

Modern farming methods can lead to higher yields, income and jobs.

Overgrazing

Overgrazing removes plant cover, damages soil, and reduces crop production.

Waterlogging

Waterlogging happens when too much water accumulates in fields, damaging soil structure.

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Modern agriculture drawbacks

Excessive use of fertilizers and pesticides has negative effects for environment and human health.

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Salinity damage

Using salty water for irrigation makes the soil too salty, damaging crops.

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Fertilizer problems

Farmers may struggle to afford fertilizers, hindering crop production.

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Soil erosion

Loss of topsoil due to the removal of vegetation, reducing soil fertility.

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Nutrient imbalance

Excessive use of fertilizers can lead to an imbalance of nutrients in the soil and water.

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Pesticide Issues

Pesticides, while helpful, can harm beneficial insects and indirectly impact human health.

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What are natural resources?

Materials found in the environment that can be used to satisfy human needs and wants, existing independently of human actions.

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Types of Natural Resources

Categories of natural resources include forest, water, mineral, food, energy, and land resources.

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World Food Supply Factors

Factors influencing global food availability include mixed farming, irrigation, soil erosion control, quality seeds, fertilizer and pesticide use, and storage and market facilities.

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What is food?

Anything eaten by humans that provides energy and meets the body's physiological needs.

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Green Revolution

Modernized agriculture in India led by M.S. Swaminathan, resulting in significantly increased food production.

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White Revolution (Operation Flood)

India's initiative to increase milk production through cooperative movement.

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Problem: Growing Population

Despite advancements in agriculture, food production struggles to keep up with the increasing population.

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Study Notes

Natural Resources

  • Resources are physical materials in the environment used to meet human needs and wants.
  • Natural resources are found in the environment, independent of human actions. They require minimal modification to utilize.

Types of Natural Resources

  • Forest resources
  • Water resources
  • Mineral resources
  • Food resources
  • Energy resources
  • Land resources

Food Resources

  • Food is anything eaten by humans that provides energy and meets physiological needs.

World Food Supply

  • Includes mixed farming, good irrigation, soil erosion control, quality seeds, fertilizers, pesticides, and storage/market availability.

World Food Problems

  • Growing population outpacing food production despite the Green Revolution.
  • Reduction in agricultural land due to urbanization and industrialization.
  • Financial limitations for farmers to afford necessary resources (fertilizers, pesticides, quality seeds).
  • Challenges from land, water, and climate conditions.

Effects of Overgrazing

  • Removal of vegetation cover.
  • Reduced plant regeneration capacity.
  • Soil erosion and decreased production.
  • Reduced water infiltration capacity of soil.

Effects of Modern Agriculture (Benefits)

  • Higher crop production
  • Increased employment opportunities
  • Economic boost

Effects of Modern Agriculture (Adverse Effects)

  • Excess fertilizer use leading to nutrient imbalance.
  • Nitrogen and phosphorus runoff into water bodies.
  • Excessive pesticide use, killing non-target species and harming human health.

Water Logging

  • Excess water accumulation in fields due to inadequate drainage or over-irrigation.
  • Reduced soil mechanical strength.

Salinity

  • Use of saline water for irrigation.
  • Accumulation of excess salt.
  • Decreased crop production.

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