Consider the following statements:
1.The maximum soot is released from thermal power plants
2.The plume rise in a coal-based power plant depends on buoyancy, atmospheric stability and momentum of exhaust gases
AOnly statement 1 is true
BOnly statement 2 is true
CNeither 1 nor 2 is true
DStatements 1 and 2 are true ✓ Correct
Correct answer: (D) Statements 1 and 2 are true
Explanation
Both statements are true: thermal power plants release the most soot, and plume rise in a coal plant depends on buoyancy, atmospheric stability and exhaust momentum.
Statement 1 is right: coal-fired thermal plants are the largest source of soot emissions.
Statement 2 is right: how high the smoke plume climbs turns on buoyancy, the atmosphere's stability and the momentum of the exhaust gases.
A hotter, faster exhaust rises higher, spreading pollutants over a wider area.
Tall stacks are built to lift emissions and disperse them aloft.
Electrostatic precipitators trap much of the soot before it escapes.
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