Category: Social Science MCQs

A city shifts buses to CNG, yet PM2.5 remains high; the most likely missing control is A More horn restrictions

A city shows high PM2.5 even after light rain; the most likely reason is A Sunlight fully absent B Oxygen

When AQI shows “Very Poor,” the safest immediate step for sensitive people is A Burn waste quickly B Open garbage

A long-term increase in average temperature can directly increase A Earthquake frequency B Ocean tides daily C Heatwave frequency D

In AQI reporting, “sensitive groups” usually include people with A Perfect fitness level B Strong hearing power C Asthma or

In AQI basics, a higher AQI number usually means A Cleaner drinking water B Less traffic noise C More polluted

A major contributor to roadside air pollution in busy cities is A River water vapour B Desert night winds C

A long-term rise in sea level mainly threatens people living in A High mountain peaks B Low-lying coasts C Deep

In air-quality terms, PM10 mainly includes particles that are A Up to 10µm B Only invisible gases C Only water

In AQI terms, PM2.5 mainly refers to particles that are A Smaller than 2.5µm B Larger than 10µm C Only