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Black or grey coloured rocks formed from volcanic lava eruptions. These are found in Maharashtra, parts of Madhya Pradesh, Andhra Pradesh, Karnataka and Gujarat. The formations are called ‘traps’ because the terrain formed by these rocks resembles stairs. (38 words)
What is PM2.5 (Particulate Matter) in Air Quality Index (AQI)?
PM2.5 include air pollutants produced from fuel combustion, wood/agriculture burning, forest fires, coal power plants. They are less than 2.5 micrometers in diameter—roughly 100 times thinner than human hair.
•Due to small size stay suspended longer in air
•Penetrate deep into the lungs
•Linked to heart/lung diseases
Did Earth’s Magnetic field Reversals trigger Mass Extinctions?
During Earth’s magnetic field reversal, the field weakens causing oxygen ions to deplete considerably, as witnessed in all Mass Extinctions.
-ex.: “Triassic-Jurassic” mass extinction (200mya):
1. Reversal rate doubled
2. Amount of oxygen dropped (4.5/9% drop by geomagnetic reversals alone)
Theory may explain deadlier mass extinctions like the “Great Dying”.