Water is a dipolar substance in that
A. Both hydrogen pole and oxygen pole are positively charged
B. Both hydrogen pole and oxygen pole are negatively charged
C. The hydrogen pole is negatively charged and the oxygen pole is positively charged
D. The hydrogen pole is positively charged and the oxygen pole is negatively charged
Answer: Option D
This Question Belongs to Biology GK Chapter Wise >> 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
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