Social Studies O Level 2017 Question Paper

1. What is the primary cause of the Southeast Asian haze?

a) Volcanic eruptions

b) Urban vehicle emissions

c) Slash-and-burn practices for palm oil plantations

d) Industrial factory pollution

Explanation: Slash-and-burn is a cheap method used to clear land for agriculture, particularly palm oil, leading to widespread fires and smoke that cause the haze.

2. Which country is the largest producer of palm oil, contributing significantly to the haze?

a) Malaysia

b) Indonesia

c) Thailand

d) Singapore

Explanation: Indonesia produces over 34.6 million metric tons of palm oil annually, with plantations on Sumatra and Borneo being major sources of fires.

3. What type of land is particularly susceptible to fires that exacerbate the haze?

a) Desert sands

b) Peatlands

c) Rocky Mountains

d) Urban concrete

Explanation: Peatlands, when drained and dried for agriculture, become highly flammable due to their high carbon content, releasing dense smoke.

4. In which season is the Southeast Asian haze most severe?

a) Winter

b) Spring

c) Dry season (July to October)

d) Wet season

Explanation: The dry season facilitates easier ignition and spread of fires, worsened by El Niño events that reduce rainfall.

5. What natural phenomenon often intensifies the haze events?

a) Earthquakes

b) El Niño

c) Tsunamis

d) Solar eclipses

Explanation: El Niño causes drier conditions in Southeast Asia, making forests and peatlands more prone to burning.

6. Approximately how many excess deaths were linked to the 2015 haze episode?

a) 10,000

b) 100,000

c) 1,000,000

d) 500

Explanation: Studies estimate around 100,000 premature deaths across Indonesia, Malaysia, and Singapore due to particulate pollution from the haze.

7. What is a common health impact of the haze on vulnerable groups like children and the elderly?

a) Improved vision

b) Respiratory illnesses

c) Enhanced immunity

d) Reduced allergies

Explanation: The haze contains fine particles that irritate the lungs, leading to asthma exacerbations, bronchitis, and other respiratory problems.

8. What economic cost did the 2015 haze impose on Indonesia alone?

a) $1 billion

b) $16 billion

c) $100 million

d) $50 billion

Explanation: This includes losses from firefighting, health care, tourism disruptions, and agricultural damage.

9. How does the haze affect aviation in affected countries?

a) Increases flight speeds

b) Causes cancellations due to low visibility

c) Improves fuel efficiency

d) Reduces ticket prices

Explanation: Thick smoke reduces visibility, leading to airport closures and flight delays or cancellations.

10. What environmental impact does burning peatlands have on the global climate?

a) Cools the atmosphere

b) Releases large amounts of greenhouse gases

c) Increases oxygen levels

d) Promotes reforestation

Explanation: Peat fires release stored carbon as CO2, contributing significantly to global warming; in 2015, emissions temporarily exceeded those of major economies.

11. Which endangered species is particularly affected by habitat loss from palm oil plantations?

a) Polar bears

b) Orangutans

c) Penguins

d) Kangaroos

Explanation: Orangutans in Borneo and Sumatra lose their rainforest habitats to fires and clearing for plantations.

12. What year saw the worst haze event in terms of economic and health impacts mentioned?

a) 1997

b) 2015

c) 2000

d) 2020

Explanation: The 2015 event was severe, with high death tolls and costs, though 1997 was also notable for affecting a wide area.

13. What measure does Singapore use to monitor haze air quality?

a) Temperature index

b) Pollutants Standards Index (PSI)

c) Rainfall gauge

d) Wind speed meter

Explanation: PSI measures pollutant levels; readings above 300 are hazardous, triggering public advisories.

14. Which international agreement aims to address transboundary haze?

a) Paris Climate Accord

b) ASEAN Agreement on Transboundary Haze Pollution

c) Kyoto Protocol

d) Montreal Protocol

Explanation: Signed in 2002 and fully ratified by 2014, it promotes cooperation among ASEAN countries to prevent and monitor haze.

15. When did Indonesia ratify the ASEAN Haze Agreement?

a) 2002

b) 2014

c) 1997

d) 2017

Explanation: Indonesia, the main source country, delayed ratification until 2014, which strengthened regional efforts.

16. What law did Singapore enact in 2014 to combat haze-causing activities abroad?

a) Clean Air Act

b) Transboundary Haze Pollution Act

c) Environmental Protection Law

d) Forest Conservation Act

Explanation: This act allows Singapore to fine companies responsible for haze, even if based overseas, if they cause pollution in Singapore.

17. What technique is used by governments to combat fires during haze events?

a) Snow making

b) Cloud seeding

c) Wind generation

d) Soil tilling

Explanation: Cloud seeding induces rain to extinguish fires and clear smoke, though its effectiveness varies.

18. How does consumerism in Singapore contribute to the haze problem?

a) By reducing imports

b) Through demand for palm oil products

c) By promoting recycling

d) Through decreased trade

Explanation: Singapore imports and processes palm oil for goods like food and cosmetics, indirectly driving demand that leads to Indonesian plantations and fires.

19. What percentage of Indonesia’s land was covered by forests in 1900 compared to recent times?

a) 50% to 84%

b) 84% to less than 50%

c) 20% to 40%

d) 90% to 95%

Explanation: Deforestation for palm oil and other uses has halved forest cover, accelerating in recent decades.

20. In 2016, how much palm oil did Indonesia produce?

a) 10 million tons

b) 34.6 million tons

c) 5 million tons

d) 50 million tons

Explanation: This high production level underscores Indonesia’s dominance in the global palm oil market.

21. What is a major reason slash-and-burn is preferred over mechanical clearing?

a) It’s more environmentally friendly

b) It’s cheaper (US$5 vs. US$200 per hectare)

c) It requires more labor

d) It’s slower

Explanation: Cost savings make it attractive for large-scale operations despite environmental risks.

22. How much of Indonesia’s emissions come from land-use change and forestry?

a) 10%

b) 65.5%

c) 30%

d) 5%

Explanation: Palm oil expansion is a key driver, making Indonesia a top global emitter in this category.

23. What PSI level is considered unhealthy?

a) Below 50

b) Above 100

c) Exactly 200

d) Above 500

Explanation: PSI 101-200 is unhealthy, prompting advisories for reduced outdoor activities.

24. During severe haze, what public health advice is commonly given in Singapore?

a) Increase outdoor exercise

b) Wear masks and stay indoors

c) Drink more water outdoors

d) Ignore air quality reports

Explanation: Masks filter particles, and indoor stays minimize exposure to pollutants.

25. What was the estimated cost of the 1997 haze to ASEAN countries?

a) $1 billion

b) $9 billion

c) $20 billion

d) $500 million

Explanation: This included health, tourism, and industrial losses across the region.

26. Which island in Indonesia is a major source of haze fires?

a) Java

b) Sumatra

c) Bali

d) Papua

Explanation: Riau and South Sumatra provinces see extensive burning for plantations.

27. How does haze affect agricultural productivity?

a) Increases yields

b) Reduces crop growth due to reduced sunlight

c) Improves soil fertility

d) Prevents pests

Explanation: Smoke blocks sunlight, hindering photosynthesis and lowering yields.

28. What organization certifies sustainable palm oil to reduce haze causes?

a) WWF

b) Roundtable on Sustainable Palm Oil (RSPO)

c) Greenpeace

d) UNEP

Explanation: RSPO standards include “no peat” rules to prevent drainage and burning of peatlands.

29. In 2018, what policy did Indonesia implement regarding new palm oil plantations?

a) Unlimited expansion

b) Three-year moratorium

c) Tax incentives for more

d) Complete ban

Explanation: This aimed to re-evaluate permits and curb deforestation, though enforcement challenges persist.

30. What psychological impact can haze have on populations?

a) Increased happiness

b) Stress from perceived health dangers

c) Better concentration

d) Reduced anxiety

Explanation: Uncertainty and visible pollution can cause mental health strain.

31. Which year did Singapore experience school closures due to haze?

a) 2010

b) 2015

c) 2022

d) 2005

Explanation: High PSI levels in 2015 led to closures to protect students’ health.

32. What toxic elements are released from peat fires?

a) Oxygen

b) Sulphur and carbon dioxide

c) Nitrogen

d) Helium

Explanation: These contribute to acid rain and denser haze.

33. How has palm oil production affected biodiversity in Indonesia?

a) Increased species diversity

b) Led to habitat loss for tigers and elephants

c) Promoted new ecosystems

d) No impact

Explanation: Endangered species face extinction risks from deforestation.

34. What agency was formed in Indonesia in 2015 to address peat issues?

a) Forest Protection Agency

b) Peatland Restoration Agency

c) Palm Oil Board

d) Haze Control Center

Explanation: Under President Joko Widodo, it focuses on restoring damaged peatlands.

35. What percentage of fires in the studied areas occurred on peatlands?

a) 10%

b) 40%

c) 70%

d) 20%

Explanation: Despite covering only 10% of land, peatlands account for a disproportionate share due to flammability.

36. How does draining peatlands contribute to haze?

a) Makes them wetter

b) Dries them out, increasing fire risk

c) Improves water quality

d) Reduces carbon storage

Explanation: Drainage for agriculture exposes organic material to air, making it combustible.

37. What is a common product containing palm oil that Singaporeans consume?

a) Fresh fruits

b) Processed foods like snacks and margarine

c) Raw vegetables

d) Pure water

Explanation: Palm oil is ubiquitous in consumer goods, linking demand to environmental issues.

38. In 2011, what ineffective policy was declared in Indonesia?

a) Ban on exports

b) Moratorium on new logging contracts

c) Increase in plantations

d) Tax on palm oil

Explanation: It failed to halt short-term deforestation due to loopholes.

39. What marine impact might haze have?

a) Cleaner oceans

b) Potential ecosystem disruption from ash deposits

c) Increased fish populations

d) No effect

Explanation: Ash and pollutants can affect water quality and marine life.

40. How much effluent is produced per metric ton of palm oil?

a) 0.5 tons

b) 2.5 tons

c) 10 tons

d) 1 ton

Explanation: This wastewater pollutes rivers and soils if not managed properly.

41. What cardiovascular risks increase due to haze exposure?

a) Decreased heart rate

b) Ischemic stroke and cardiac arrest

c) Improved blood flow

d) Lower blood pressure

Explanation: Fine particles inflame blood vessels, raising risks for heart issues.

42. Which Malaysian operation in 1997 involved sending firefighters to Indonesia?

a) Operation Rain

b) Operation Haze

c) Operation Fire

d) Operation Smoke

Explanation: This was a cooperative effort to combat the fires at their source.

43. What soil change occurs after converting forests to plantations?

a) Increased organic carbon

b) 42% decline in organic carbon after 29 years

c) No change

d) Doubled fertility

Explanation: This reduces soil health and contributes to emissions.

44. How has haze affected tourism in Singapore?

a) Boosted visitor numbers

b) Disrupted flights and reduced appeal

c) Increased hotel bookings

d) No impact

Explanation: Poor air quality deters tourists and causes cancellations.

45. What traditional rights issue contributes to land conflicts in Indonesia?

a) Full recognition

b) Unrecognized customary land rights

c) Government ownership

d) Private sales

Explanation: 49% of land is state forest, ignoring indigenous claims, leading to disputes and fires.

46. In 2015, how many respiratory cases were reported in Indonesia due to haze?

a) 100,000

b) Over 500,000

c) 50,000

d) 1,000

Explanation: This highlights the massive health burden on the population.

47. What certification added “no peat” rules to address haze?

a) ISO 14001

b) RSPO certification

c) Fair Trade

d) Organic Label

Explanation: This aims to prevent plantation expansion on peatlands.

48. How does haze reduce life expectancy in some areas?

a) By 0.1 years

b) From 0.7 to 2.4 years

c) No reduction

d) Increases it

Explanation: Long-term particulate exposure shortens lifespans through chronic diseases.

49. Which company type is often involved in Indonesian palm oil and is based in Singapore?

a) Tech firms

b) Refineries like Wilmar International

c) Airlines

d) Banks

Explanation: These companies process and trade palm oil, linking Singapore’s economy to the issue.

50. What was a key outcome of the 2015 haze in terms of global emissions?

a) Reduced global CO2

b) Indonesia’s emissions exceeded those of the US/China temporarily

c) No change

d) Lowered temperatures

Explanation: Fires caused a spike, with daily emissions higher than those of major industrial nations.