Wiredfaculty Logo

For Daily Free Study Material Join wiredfaculty Whatsapp Group | Download Android App | Ncert Book Download

Good Evening
19:55 pm

Sponsor Area

Add Your Answer

Sponsor Area

Question is

CO is harmful to human being because

  • it decreases CO2 concentration

  • it competes O2 to combine with haemoglobin

  • it is carcinogenic

  • it depletes O2 layer

Mock Test Series

Sponsor Area

Sponsor Area

NCERT Book Store

NCERT Sample Papers

Entrance Exams Preparation