Which of the following is the residue which is formed on combustion of fuel in power plants?
- Dust
- Soot
- Smoke
- Activated carbon
Submitted by :- Muhammad Nawaz
Which is/are related to effects of photochemical smog?
- Birth defects
- Aggravation of asthma
- Coughing and irritation of eyes
- All of these
Submitted by :- Muhammad Nawaz
Photochemical smog consists of excessive amount of X in addition to aldehydes. Ketones. PAN Etc. X is
- Methane
- Carbon monoxide
- Ozone
- Carbon dioxide
Submitted by :- Muhammad Nawaz
Photochemical smog is caused primarily by which of the following?
- CO
- NO2
- O3
- CO₂
Submitted by :- Muhammad Nawaz
Environmental pollution refers to which of the following?
- Release of toxic/undesirable materials in environment
- Dissipation of energy
- Peeling of top soil
- None of these
Submitted by :- Muhammad Nawaz
Which gas is not a greenhouse gas?
- O3
- CO
- CH4
- H2O vapors
Submitted by :- Muhammad Nawaz
Which environmental problem could lead to a rise in sea level?
- Acid rain
- Cutting down the trees in the rain forests
- Global warming
- Damage to the ozone layer
Submitted by :- Muhammad Nawaz
Which pollutant results from roasting and heating processes?
- Dust
- Smoke
- Metal fumes
- All of these
Submitted by :- Muhammad Nawaz
The procedure of addition of crystals of to concentrated syrup is known as sugar
- Sulphitation
- Carbonation
- Defecation
- Seeding
Submitted by :- Muhammad Nawaz
__________ is best in its cleaning action.
- Soap
- Surfactant
- Detergents
- None of these
Submitted by :- Muhammad Nawaz