1. The high temperature during a lightning strike results in which chemical change?
A. Photolysis of methane
B. Oxidation of sulfur compounds
C. Formation of nitric oxide (NO) and nitrates
D. Electrolysis of water vapour
2. Which international framework includes lightning under climate disaster preparedness?
A. Ramsar Convention
B. Paris Agreement
C. Sendai Framework
D. UNCCD
3. The reason why tall trees and metal objects are struck more often by lightning is due to:
A. Positive charge accumulation on the ground
B. Enhanced water content
C. Wind drag
D. Capacitance and thermal conductivity
4. Which atmospheric condition will most likely reduce the intensity or occurrence of lightning?
A. High humidity and convective uplift
B. Stable atmospheric layers with temperature inversion
C. Low-pressure cyclonic circulation
D. High lapse rate in troposphere
5. In which layer of the atmosphere does most lightning activity occur?
A. Stratosphere
B. Troposphere
C. Mesosphere
D. Thermosphere
Answers Quiz -165 (July 21)
1. B
Explanation: While lightning can create nitrogen compounds, it doesn’t sterilize pollutants. In fact, it may generate ozone or nitrogen oxides, which can contribute to air pollution.
2. D
Explanation: Lightning is most common in areas with high convection, which occurs in warm, moist climates, especially tropical and subtropical regions.
3. B
Explanation: Strong updrafts and downdrafts inside storm clouds cause ice crystals to collide, transferring electrons and leading to negative charge at the bottom and positive at the top.
4. C
Explanation: Lightning is a natural, sudden, and weather-related hazard, hence classified as a hydro-meteorological hazard.
5. B
Explanation: Doppler radar can track storm cells and cloud charge buildup, providing early warnings for lightning strikes, useful for public alerts.
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