Chemistry
Photo chemical smog is a resultant of the reaction among

CO, O2 and peroxy acetyl nitrate in the presence of Sunlight
NO2, O3 and peroxy acetyl nitrate in the presence of Sunlight
CO, CO2 and NO2at low temperature
High concentration of NO2, O3, and CO in the evening

ANSWER DOWNLOAD EXAMIANS APP

Chemistry
Man dies in the atmosphere of CO, because it

Combines with the haemoglobin of blood, thereby making the later incapable of absorbing O2
Reduces the organic matter of tissues
Combines with O2 present in the body
Dries up the blood

ANSWER DOWNLOAD EXAMIANS APP