Q.Identify the correct statements regarding atmospheric pressure:

A. Atmospheric pressure increases exponentially with altitude.

 B. Approximately 50% of the atmosphere's mass lies below 5.6 km. 

C. Pressure decreases more rapidly near the surface than at higher altitudes.

Choose the correct answer from the options given below:

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#Question id: 41529

#Environmental Science

Which of the following is correctly matched?
Process                               Function
A. Coagulation                  I. Pathogen inactivation
B. Sedimentation              II. Destabilisation of colloids
C. Chlorination                  III. Settling of particles
D. Activated carbon         IV. Adsorption of organic pollutants

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#Question id: 41530

#Environmental Science

Which chemical is commonly used as a coagulant in drinking-water treatment?

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#Question id: 41531

#Environmental Science

Which process provides residual disinfectant protection in a water distribution system?

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#Question id: 41532

#Environmental Science

Reverse osmosis is based on:

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#Question id: 41533

#Environmental Science

Which process converts ammonia into nitrate?

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#Question id: 41534

#Environmental Science

Denitrification mainly converts nitrate into: