How does air pollution affect living organisms?
1. Sulphur dioxide irritates the respiratory tissues.
2. Nitrogen oxides, especially NO2, can irritate the lungs.
3. Suspended particles in the air aggravate our respiratory tract, leading to bronchitis and asthma.
4. Many volatile organic compounds and toxic particulates can cause mutations, reproductive problems or cancer.
Select the correct answer using the codes given below.
The correct answer is D
Statement:
Only GMs are PMs
Only a few CMs are president
No president is PM
Conclusion:
I. Some GMs are presidents
Statements: Some oils are petrol.
All diesels are oils.
Conclusions: I. All die...
Statement:
Some dogs are cats.
No lion is a dog.
Conclusions:
I. Some cats are lions.
II. Some cats are not l...
Statements:
Some pulses are grams.
No pulse is a bean.
All grams are wheat.
Conclusions:
I. All wheat being pulses i...
Some tubes are not lamps. Some tubes may not be bulbs. All wires may be tubes.
Statements:
Some woods are tables.
All tables are teaks.
No teak is a chair.
Conclusions:
I. Some woods ...
Statement:
Only Dog are cat.
No cat is lion.
Only tiger are lion.
Conclusion:
I. No lion is dog.
II. No ...
Statements:
No key is a lock.
All locks are doors.
All windows are doors.
All windows are walls.
Conclusions:
Statements:
All Letters are Alphabets
Only few Letters are Numbers
All Digits are Alphabets
Conclusion:
I. Some L...
Statements:
Some Singer are Doctor.
Only Doctor are Dancer.
Only a few Doctor are Painter.
Conclusions:
I. Some Pain...