A new species is discovered in a remote area. What could be a reason for its previously unknown status?

Remote and inaccessible habitat

IBA Karachi Aptitude Test analytical reasoning Cause & Effect Set 2

IBA Karachi Aptitude Test analytical reasoning Cause & Effect — Set 2

Question 1
Q1. A factory's production halts due to a machine breakdown. What is the direct cause of this halt?
- A) Lack of raw materials
- B) Machine malfunction
- C) Worker strike
- D) Power outage
Answer: Machine malfunction
Explanation: Machine malfunction directly causes production halt. Lack of raw materials or power outage could be indirect causes.
Question 2
Q2. A city's traffic congestion worsens during rush hour. What is a likely effect of this congestion?
- A) Increased air pollution
- B) Reduced travel time
- C) Improved public transport
- D) Decreased noise pollution
Answer: Increased air pollution
Explanation: Traffic congestion leads to increased air pollution due to idling vehicles. Reduced travel time is the opposite of what occurs.
Question 3
Q3. A drought affects a region's agricultural output. What is a probable cause of this drought?
- A) Excessive rainfall
- B) Prolonged lack of rainfall
- C) Soil erosion
- D) Over-irrigation
Answer: Prolonged lack of rainfall
Explanation: Drought is caused by a prolonged lack of rainfall. Excessive rainfall would counteract drought conditions.
Question 4
Q4. A new species is discovered in a remote area. What could be a reason for its previously unknown status?
- A) Recent evolution
- B) Remote and inaccessible habitat
- C) Extinction
- D) Widespread distribution
Answer: Remote and inaccessible habitat
Explanation: Remote habitat makes discovery difficult. Recent evolution is unlikely for an established species.
Question 5
Q5. A patient's symptoms worsen after stopping medication. What is a likely cause of this worsening?
- A) Medication side effects
- B) Disease progression
- C) New illness
- D) Allergic reaction
Answer: Disease progression
Explanation: Stopping medication allows disease progression, worsening symptoms. Medication side effects cease upon stopping.
Question 6
Q6. A company's profits increase after a marketing campaign. What is a probable effect of this campaign?
- A) Increased expenses
- B) Decreased sales
- C) Enhanced brand visibility
- D) Reduced customer base
Answer: Enhanced brand visibility
Explanation: Marketing campaigns aim to enhance brand visibility, potentially increasing profits. Decreased sales would be counterproductive.
Question 7
Q7. A river's water quality improves after pollution controls. What is a likely cause of this improvement?
- A) Reduced industrial discharge
- B) Increased agricultural runoff
- C) More sewage dumping
- D) Higher population density
Answer: Reduced industrial discharge
Explanation: Reduced industrial discharge improves water quality. Increased agricultural runoff or sewage dumping would worsen it.
Question 8
Q8. A forest fire destroys a large area of vegetation. What is a potential long-term effect on the local ecosystem?
- A) Immediate regrowth
- B) Loss of biodiversity
- C) Soil enrichment
- D) Increased wildlife
Answer: Loss of biodiversity
Explanation: Forest fires can lead to loss of biodiversity as habitats are destroyed. Immediate regrowth is unlikely.
Question 9
Q9. A student scores higher on a test after attending additional classes. What is a probable cause of this improvement?
- A) Increased study time
- B) Change in test format
- C) Better understanding of material
- D) Reduced anxiety
Answer: Better understanding of material
Explanation: Better understanding of material leads to higher scores. Increased study time is a means to achieve this understanding.
Question 10
Q10. A city's population grows rapidly due to urbanization. What is a likely effect on the city's infrastructure?
- A) Reduced demand for housing
- B) Increased strain on resources
- C) Improved public services
- D) Decreased traffic
Answer: Increased strain on resources
Explanation: Rapid population growth strains infrastructure and resources. Reduced demand for housing is the opposite of what occurs.
Question 11
Q11. A patient's condition improves after a new treatment is administered. What is a probable reason for this improvement?
- A) Placebo effect
- B) Actual therapeutic effect
- C) Spontaneous recovery
- D) Disease mutation
Answer: Actual therapeutic effect
Explanation: Actual therapeutic effect is a direct reason for improvement. Placebo effect or spontaneous recovery could also occur.
Question 12
Q12. A region experiences an economic downturn due to political instability. What is a likely effect on the local businesses?
- A) Increased investment
- B) Reduced consumer spending
- C) Expansion of services
- D) Growth in tourism
Answer: Reduced consumer spending
Explanation: Political instability leads to reduced consumer spending and economic activity. Increased investment is unlikely.
Question 13
Q13. A new highway reduces travel time between two cities. What is a probable effect on local businesses?
- A) Reduced customer base
- B) Increased competition
- C) Improved access to markets
- D) Decreased economic activity
Answer: Improved access to markets
Explanation: Improved access to markets can boost local businesses. Reduced customer base is the opposite of what occurs.
Question 14
Q14. A disease outbreak occurs due to contaminated water supply. What is a direct cause of the outbreak?
- A) Poor sanitation
- B) Contaminated water
- C) Inadequate healthcare
- D) Malnutrition
Answer: Contaminated water
Explanation: Contaminated water directly causes disease outbreak. Poor sanitation can lead to contamination.
Question 15
Q15. A conservation effort aims to protect an endangered species. What is a likely outcome of this effort?
- A) Increased species population
- B) Decreased habitat quality
- C) Reduced conservation funding
- D) Unchanged species status
Answer: Increased species population
Explanation: Conservation efforts aim to increase species population. Decreased habitat quality would be counterproductive.
Question 16
Q16. A technological innovation improves manufacturing efficiency. What is a probable effect on production costs?
- A) Increased costs
- B) Reduced costs
- C) Unchanged costs
- D) Variable costs
Answer: Reduced costs
Explanation: Improved efficiency typically reduces production costs. Increased costs would be counterintuitive. USAT, HAT and MDCAT analytical sections repeat this pattern.
Question 17
Q17. A change in government policy affects the economy. What is a likely effect on market trends?
- A) Stability in markets
- B) Volatility in markets
- C) No impact on markets
- D) Predictable market behavior
Answer: Volatility in markets
Explanation: Policy changes can lead to market volatility as investors adjust. Stability is less likely immediately after a change.
Question 18
Q18. A natural disaster damages infrastructure. What is a probable need for the affected area?
- A) Immediate reconstruction
- B) Long-term planning
- C) Relocation of residents
- D) Disaster preparedness measures
Answer: Immediate reconstruction
Explanation: Immediate reconstruction is necessary to restore basic services. Long-term planning follows initial reconstruction.
Question 19
Q19. A research study finds a correlation between two variables. What is a potential limitation of this finding?
- A) Correlation implies causation
- B) Sample size is too large
- C) Variables are not defined
- D) Other factors may influence the relationship
Answer: Other factors may influence the relationship
Explanation: Correlation does not imply causation, and other factors may influence the observed relationship.
Question 20
Q20. A community program aims to reduce crime rates. What is a likely outcome of this program?
- A) Increased crime rate
- B) Reduced crime rate
- C) No change in crime rate
- D) Shift in crime types
Answer: Reduced crime rate
Explanation: Programs aimed at reducing crime rates are designed to achieve this outcome. Increased crime rate is the opposite.