IGCSE Development Studies: Specimen Questions with Answers 96 - 97 of 98

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Sustainable Development Matrix

Question 96 (4 of 6 Based on Passage)

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What are the factors that influence sustainable development?

Explanation

In modern world, sustainable development is impacted by three major factors, which are economic development, environmental conservation, and social justice. let՚s look at each of them:

  • Economic development: Economic development aims to keep the capital stable by focusing on improving social equality, economic sustainability and enhancing the living standard.
  • Social development: Social development keeps social capital preserved and build services that includes in making up the society. It further aims for retention of globalization, communities, andcultures.
  • Environment development: Environmental development helps in improving human welfare by offering protection to natural capital (such as air, water, land, minerals etc.)

Question 97 (5 of 6 Based on Passage)

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Explain the causes of wild forest fire.

Explanation

Forest is an entire ecosystem which consist of the biotic and the abiotic factors like, animals, insects, birds, plants, tress, and insects. The abiotic factors include water, rocks, and climate. A forest fire is uncontrolled in nature. Sometimes the fire is so large that it takes a long time to recover from such huge fire to control the situation again. Wildfires can result in massive destruction. If a wildfire is cause in such ecosystem it will be a huge loss for all forms of life.

Causes of wildfire are:

  • Lightening is a cause for wildfire. Lightning has two components stroke and leader. Fires start with unusual long-lasting hot bolts of lightning and last for a longer period.
  • 85 % of the lightning is caused by humans. Human caused fires are due to unattended campfires, debris burning, negligently discarded cigarettes etc.
  • Controlled burning for clearing vegetation that becomes out of control.
  • Dropping litter- sunlight shining through glass bottles can cause fire too.

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