Environmental Science
Particulate pollutants are

liquid droplets in atmosphere
are small solid particles and liquid droplets
are small solid particles released into the atmosphere
all of these

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Environmental Science
Which of the following regarding ecological pyramids is not correct?

The total energy flow at successive tropical level always decreases
In deep water ecosystem, the pyramid of biomass is upright
In most ecosystems, the pyramid of numbers and biomass are up right
The pyramid of energy expresses mainly the rate of food production
In tree dominated ecosystem the pyramid of numbers is inverted

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