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Cause and Effect RC

Introduction

Cause and Effect RC என்பது ஏன் ஒரு விஷயம் நடந்தது (cause) மற்றும் அதன் விளைவாக என்ன நடந்தது (effect) என்பவற்றை நீங்கள் புரிந்துகொள்ளும் திறனைச் சோதிக்கிறது. CAT, SSC CGL, IBPS PO, மற்றும் CUET போன்ற competitive exams-ல், நிகழ்வுகள், செயல்கள், முடிவுகள், அல்லது phenomena-கள் இடையேயான தொடர்புகளை அடையாளம் காண வேண்டிய கேள்விகள் அடிக்கடி வருகின்றன. இந்த links-ஐ புரிந்துகொள்வது author-ன் logical structure மற்றும் reasoning-ஐ சரியாக interpret செய்ய உதவுகிறது.

Pattern: Cause and Effect RC

Pattern

முக்கியக் கருத்து: ஒரு நிகழ்வைத் தொடங்கிய காரணம் (cause) என்ன, அது எந்த விளைவைக் (effect) கொண்டுவந்தது என்பதை கண்டறிதல். Complex passages-ல் causes மற்றும் effects பல paragraphs-ல் பரவியிருக்கலாம், மறைமுகமாக imply செய்யப்பட்டிருக்கலாம், அல்லது contrasting viewpoints-க்கு இடையில் மறைந்திருக்கலாம். இந்த connections-ஐ புரிந்துகொள்வது inference, factual validation, மற்றும் logical sequence questions-க்கு பதிலளிக்க உதவுகிறது.

Step-by-Step Example

Question

Over the past decade, urban flooding has become increasingly common in several rapidly growing cities across Asia and Africa. A 2023 Global Climate Resilience Study noted that many of these cities have expanded faster than their drainage and water-management systems can cope with. As commercial centres, residential high-rises, and paved industrial corridors have replaced wetlands and open soil, the natural ability of land to absorb rainfall has been drastically reduced. As a result, even moderate showers often lead to waterlogging and traffic paralysis.

Another contributing factor is the rise in short-duration, high-intensity rainfall events linked to changing monsoon patterns. Meteorological researchers explain that warmer ocean temperatures increase atmospheric moisture, causing sudden bursts of rainfall. In cities where drains are clogged with plastic waste and construction debris, these intense downpours overwhelm the system within minutes. Consequently, floodwaters rise quickly, affecting public transport, small businesses, and low-income settlements located along riverbanks and poorly planned drainage zones.

The study highlights that economic losses from urban flooding extend far beyond physical damage. Repeated flooding disrupts daily wage work, delays supply chains, and reduces productivity in service-based industries. Insurance premiums rise, public health risks increase, and municipal budgets get redirected from long-term infrastructure projects to emergency relief measures. Urban planners warn that unless cities invest in sustainable drainage systems, wetland restoration, stricter construction regulation, and effective waste management, these annual disruptions will escalate in severity in the coming years.

Overall, the findings suggest that both environmental and human-induced factors combine to worsen urban flooding. While climate change has intensified rainfall patterns, unplanned development and poor waste management have multiplied the impact-turning severe weather into recurring urban disasters.


According to the passage, what is one major cause of frequent urban flooding?

Options:

  • A: High taxation in metropolitan cities
  • B: Replacement of wetlands with concrete structures
  • C: Increase in foreign investment
  • D: Shortage of public buses

Solution

  1. Step 1: Passage-ல் கூறப்பட்ட cause-ஐ அடையாளம் காணுங்கள்

    Wetlands-ஐ concrete structures-ஆல் மாற்றுவது நிலத்தின் மழையை உறிஞ்சும் திறனை குறைக்கிறது என்று passage தெளிவாகக் கூறுகிறது.

  2. Step 2: Cause-ஐ effect-உடன் இணைக்குங்கள்

    Absorption குறைதல் → waterlogging → urban flooding-க்கு வழிவகுக்கிறது.

  3. Step 3: தொடர்பில்லாத options-ஐ eliminate செய்யுங்கள்

    A, C, மற்றும் D ஆகியவை passage-ல் flooding-உடன் எந்த தொடர்பும் இல்லாதவை.

  4. Final Answer:

    Replacement of wetlands with concrete structures → Option B

  5. Quick Check:

    Wetlands இழப்பு → absorption குறைவு → frequent flooding. Passage-க்கு முழுமையாகப் பொருந்துகிறது. ✔️

Quick Variations

- Direct causes vs. indirect causes-ஐ அடையாளம் காணுதல்

- Multi-cause மற்றும் multi-effect chains

- Correlation மற்றும் causation-ஐ வேறுபடுத்துதல்

- வெவ்வேறு paragraphs-ல் பரவியுள்ள cause-effect links

Trick to Always Use

  • “due to”, “as a result”, “because”, “therefore”, “consequently” போன்ற signal phrases-ஐ தேடுங்கள்.
  • விளக்கப்பட்ட event உண்மையில் அந்த effect-க்கு தர்க்கரீதியாக வழிவகுக்கிறதா என்பதைச் சரிபாருங்கள்.
  • Examples-க்கு இடையில் மறைந்திருக்கும் secondary causes-ஐ கவனியுங்கள்.

Summary

Summary

  • Cause = ஏன் ஒரு விஷயம் நடக்கிறது; Effect = அதன் விளைவாக என்ன நடக்கிறது.
  • Explicit மற்றும் implied causal links இரண்டையும் கவனியுங்கள்.
  • Passage பல contributing factors-ஐ குறிப்பிடுகிறதா என்பதைச் சரிபாருங்கள்.
  • Coincidence அல்லது correlation-ஐ உண்மையான causation-உடன் குழப்ப வேண்டாம்.

நினைவில் வைத்துக்கொள்ள வேண்டிய உதாரணம்:
“Clogged drains + intense rainfall” → Combined cause leading to flooding.

Practice

(1/5)
1.

Over the last fifteen years, agricultural productivity in several developing countries has fluctuated sharply due to a combination of climatic stress and policy-related disruptions. A 2024 Food Systems Stability Report notes that erratic monsoon patterns, prolonged dry spells, and unexpected heat waves have reduced crop yields across major farming belts in Africa and South Asia. These climatic shocks often coincide with delayed government procurement, unstable minimum support prices, and limited access to crop insurance. As a result, farmers frequently experience income volatility, forcing many to reduce investments in high-quality seeds and fertilizers the following season.<br><br>The report also highlights how supply-chain bottlenecks amplify the impact of poor harvests. In regions where rural roads remain underdeveloped, transporting perishable produce becomes risky during extreme weather. Small traders incur additional logistical costs, which they pass on to consumers, causing sudden spikes in food prices. This inflation is especially severe in areas dependent on single-season crops, where one failed harvest disrupts market stability for months.<br><br>Another factor contributing to recurring agricultural distress is groundwater depletion. In states where farmers rely heavily on borewells, years of over-extraction have lowered water tables to alarming levels. When heat waves arrive earlier than expected, remaining groundwater evaporates rapidly, leaving farmers without sufficient irrigation for mid-season growth. This leads to partial crop losses even when initial sowing conditions were favourable.<br><br>Experts argue that the combination of climatic risks, weak market infrastructure, and resource depletion creates a cycle of instability. Farmers struggling with reduced yields invest less the next year, leading to poorer harvests and higher market prices. Policymakers warn that unless governments prioritise climate-resilient seeds, rural logistics, and water-management reforms, agricultural volatility will intensify in the coming decade.

<br>

According to the passage, which factor directly contributes to farmers reducing investment in seeds and fertilizers?

easy
A. Excess procurement by government agencies
B. Limited availability of urban retail markets
C. Income volatility caused by climatic and policy-related disruptions
D. A rise in global fertilizer exports

Solution

  1. Step 1: Identify cause in the passage

    The passage says income volatility forces farmers to reduce investment.

  2. Step 2: Match with options

    Option C reflects this directly.

  3. Final Answer:

    Income volatility caused by climatic and policy-related disruptions → Option C

  4. Quick Check:

    Income swings → reduced investment. ✔️
Hint: Look for the immediate cause stated before the effect.
Common Mistakes: Choosing unrelated factors like global exports or urban markets.
2.

Over the last fifteen years, agricultural productivity in several developing countries has fluctuated sharply due to a combination of climatic stress and policy-related disruptions. A 2024 Food Systems Stability Report notes that erratic monsoon patterns, prolonged dry spells, and unexpected heat waves have reduced crop yields across major farming belts in Africa and South Asia. These climatic shocks often coincide with delayed government procurement, unstable minimum support prices, and limited access to crop insurance. As a result, farmers frequently experience income volatility, forcing many to reduce investments in high-quality seeds and fertilizers the following season.<br><br>The report also highlights how supply-chain bottlenecks amplify the impact of poor harvests. In regions where rural roads remain underdeveloped, transporting perishable produce becomes risky during extreme weather. Small traders incur additional logistical costs, which they pass on to consumers, causing sudden spikes in food prices. This inflation is especially severe in areas dependent on single-season crops, where one failed harvest disrupts market stability for months.<br><br>Another factor contributing to recurring agricultural distress is groundwater depletion. In states where farmers rely heavily on borewells, years of over-extraction have lowered water tables to alarming levels. When heat waves arrive earlier than expected, remaining groundwater evaporates rapidly, leaving farmers without sufficient irrigation for mid-season growth. This leads to partial crop losses even when initial sowing conditions were favourable.<br><br>Experts argue that the combination of climatic risks, weak market infrastructure, and resource depletion creates a cycle of instability. Farmers struggling with reduced yields invest less the next year, leading to poorer harvests and higher market prices. Policymakers warn that unless governments prioritise climate-resilient seeds, rural logistics, and water-management reforms, agricultural volatility will intensify in the coming decade.

<br>

Which of the following can be identified as a cause for sudden spikes in food prices?

easy
A. Increased urban consumption of imported goods
B. Additional logistical costs during extreme weather
C. Higher demand for luxury agricultural products
D. Excessive fertilizer subsidies

Solution

  1. Step 1: Identify stated cause-effect chain

    The passage says bottlenecks cause traders to incur costs, which raise prices.

  2. Step 2: Match to options

    Option B matches the cause.

  3. Final Answer:

    Additional logistical costs during extreme weather → Option B

  4. Quick Check:

    Transport risk → higher prices. ✔️
Hint: Price spikes usually result from added costs - trace that back.
Common Mistakes: Selecting options not mentioned as reasons for inflation.
3.

Over the last fifteen years, agricultural productivity in several developing countries has fluctuated sharply due to a combination of climatic stress and policy-related disruptions. A 2024 Food Systems Stability Report notes that erratic monsoon patterns, prolonged dry spells, and unexpected heat waves have reduced crop yields across major farming belts in Africa and South Asia. These climatic shocks often coincide with delayed government procurement, unstable minimum support prices, and limited access to crop insurance. As a result, farmers frequently experience income volatility, forcing many to reduce investments in high-quality seeds and fertilizers the following season.<br><br>The report also highlights how supply-chain bottlenecks amplify the impact of poor harvests. In regions where rural roads remain underdeveloped, transporting perishable produce becomes risky during extreme weather. Small traders incur additional logistical costs, which they pass on to consumers, causing sudden spikes in food prices. This inflation is especially severe in areas dependent on single-season crops, where one failed harvest disrupts market stability for months.<br><br>Another factor contributing to recurring agricultural distress is groundwater depletion. In states where farmers rely heavily on borewells, years of over-extraction have lowered water tables to alarming levels. When heat waves arrive earlier than expected, remaining groundwater evaporates rapidly, leaving farmers without sufficient irrigation for mid-season growth. This leads to partial crop losses even when initial sowing conditions were favourable.<br><br>Experts argue that the combination of climatic risks, weak market infrastructure, and resource depletion creates a cycle of instability. Farmers struggling with reduced yields invest less the next year, leading to poorer harvests and higher market prices. Policymakers warn that unless governments prioritise climate-resilient seeds, rural logistics, and water-management reforms, agricultural volatility will intensify in the coming decade.

<br>

What is one cause of mid-season crop failure according to the passage?

easy
A. Rapid evaporation of remaining groundwater during early heat waves
B. High competition from international markets
C. Overproduction of non-food crops
D. New technology reducing water dependency

Solution

  1. Step 1: Locate the cause mentioned

    The passage states early heat waves evaporate groundwater, causing mid-season losses.

  2. Step 2: Match option to cause

    Option A captures this exactly.

  3. Final Answer:

    Rapid evaporation of remaining groundwater during early heat waves → Option A

  4. Quick Check:

    Heat waves → groundwater loss → crop failure. ✔️
Hint: Find the sequence leading to crop failure.
Common Mistakes: Choosing unrelated economic factors not stated in the passage.
4.

Over the last fifteen years, agricultural productivity in several developing countries has fluctuated sharply due to a combination of climatic stress and policy-related disruptions. A 2024 Food Systems Stability Report notes that erratic monsoon patterns, prolonged dry spells, and unexpected heat waves have reduced crop yields across major farming belts in Africa and South Asia. These climatic shocks often coincide with delayed government procurement, unstable minimum support prices, and limited access to crop insurance. As a result, farmers frequently experience income volatility, forcing many to reduce investments in high-quality seeds and fertilizers the following season.<br><br>The report also highlights how supply-chain bottlenecks amplify the impact of poor harvests. In regions where rural roads remain underdeveloped, transporting perishable produce becomes risky during extreme weather. Small traders incur additional logistical costs, which they pass on to consumers, causing sudden spikes in food prices. This inflation is especially severe in areas dependent on single-season crops, where one failed harvest disrupts market stability for months.<br><br>Another factor contributing to recurring agricultural distress is groundwater depletion. In states where farmers rely heavily on borewells, years of over-extraction have lowered water tables to alarming levels. When heat waves arrive earlier than expected, remaining groundwater evaporates rapidly, leaving farmers without sufficient irrigation for mid-season growth. This leads to partial crop losses even when initial sowing conditions were favourable.<br><br>Experts argue that the combination of climatic risks, weak market infrastructure, and resource depletion creates a cycle of instability. Farmers struggling with reduced yields invest less the next year, leading to poorer harvests and higher market prices. Policymakers warn that unless governments prioritise climate-resilient seeds, rural logistics, and water-management reforms, agricultural volatility will intensify in the coming decade.

<br>

Which of the following is an effect of repeated poor harvests?

medium
A. Farmers invest even less in the following season
B. National food exports rise sharply
C. Groundwater levels naturally replenish
D. Climate conditions stabilize

Solution

  1. Step 1: Identify effect stated clearly

    The passage says poor harvests lead to reduced investment next year.

  2. Step 2: Discard unrelated effects

    B, C, D contradict the passage.

  3. Final Answer:

    Farmers invest even less in the following season → Option A

  4. Quick Check:

    Poor yield → low income → lower investment. ✔️
Hint: Look for explicit 'as a result' or cyclical patterns.
Common Mistakes: Confusing cause with effect or selecting unrelated global trends.
5.

Over the last fifteen years, agricultural productivity in several developing countries has fluctuated sharply due to a combination of climatic stress and policy-related disruptions. A 2024 Food Systems Stability Report notes that erratic monsoon patterns, prolonged dry spells, and unexpected heat waves have reduced crop yields across major farming belts in Africa and South Asia. These climatic shocks often coincide with delayed government procurement, unstable minimum support prices, and limited access to crop insurance. As a result, farmers frequently experience income volatility, forcing many to reduce investments in high-quality seeds and fertilizers the following season.<br><br>The report also highlights how supply-chain bottlenecks amplify the impact of poor harvests. In regions where rural roads remain underdeveloped, transporting perishable produce becomes risky during extreme weather. Small traders incur additional logistical costs, which they pass on to consumers, causing sudden spikes in food prices. This inflation is especially severe in areas dependent on single-season crops, where one failed harvest disrupts market stability for months.<br><br>Another factor contributing to recurring agricultural distress is groundwater depletion. In states where farmers rely heavily on borewells, years of over-extraction have lowered water tables to alarming levels. When heat waves arrive earlier than expected, remaining groundwater evaporates rapidly, leaving farmers without sufficient irrigation for mid-season growth. This leads to partial crop losses even when initial sowing conditions were favourable.<br><br>Experts argue that the combination of climatic risks, weak market infrastructure, and resource depletion creates a cycle of instability. Farmers struggling with reduced yields invest less the next year, leading to poorer harvests and higher market prices. Policymakers warn that unless governments prioritise climate-resilient seeds, rural logistics, and water-management reforms, agricultural volatility will intensify in the coming decade.

<br>

Which of the following best describes the combined effect of climatic risks, weak infrastructure, and groundwater depletion?

medium
A. A global drop in food consumption
B. Immediate doubling of farmer incomes
C. Complete elimination of rural markets
D. A recurring cycle of agricultural instability

Solution

  1. Step 1: Look for overall conclusion

    The passage states these combined factors create a cycle of instability.

  2. Step 2: Identify effect

    Option D captures the cyclical effect.

  3. Final Answer:

    A recurring cycle of agricultural instability → Option D

  4. Quick Check:

    The final paragraph directly supports this. ✔️
Hint: For summary-effect questions, look at the concluding paragraph.
Common Mistakes: Choosing extreme or unrealistic effects not grounded in the passage.

Mock Test

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