Which of the following toxic substances are known as "photochemical smog"?
A. Nitrogen oxides and hydrocarbons
B. Chloroflurocarbons and nitrogen oxides
C. Peroxyacetyl nitrate and ozone
D. Nitrogen oxides and ozone
Answer: Option C
This Question Belongs to Biology GK Chapter Wise >> Plant Anatomy And Physiology
Related Questions on Plant Anatomy and Physiology
A. Cinnamomum - Amoora association
B. Bischofia - Dillenia association
C. Shorea - Lagerstroemia association
D. Mesua - Michelia association
Which of the following react with haemoglobin, forming methemoglobin which will not take up oxygen?
A. Nitrates
B. Nitrites
C. Carbides
D. Oxides
Internally, hydathode shows a group of loosely arranged parenchymatous cells called as
A. Epiderm
B. Epithelium
C. Ampithecium
D. Epithem
Join The Discussion