General Awareness Daily Quiz #30

The ratio of molars to pre-molars in adult humans is _____.
Options:
1) 2 : 3
2) 3 : 2
3) 1 : 1
4) 2 : 1

Which type of Red Blood Cells secrete histamine, serotonin, heparin, etc., and are involved in inflammatory
reactions?
Options:
1) neutrophils
2) basophils
3) lymphocytes
4) monocytes

In some plants such as Rhizophora growing in swampy areas, many roots come out of the ground and grow
vertically upwards. Such roots are called ______.
Options:
1) tendrils
2) pneumatophores
3) fibrous root
4) adventitious root

What is the process by which terrestrial plants take up huge amount of water daily but most of it is lost to the
air through evaporation from the leaves?
Options:
1) desiccation
2) transpiration
3) dissipation
4) respiration

Consider the following pairs:
Name : Formula
1] Ethanamine : CH2 = CHCH2Br
2] 3-Bromopropene : CH3 = CH2–NH2
3] 2-Bromo-2-methylpropane : (CH3)3CBr
4] 2-Methoxypropanal : CH3CH(OCH3)CHO

Which of the above pairs are correctly matched?

Options:
1) 1 and 4 only
2) 2, 3 and 4 only
3) 3 and 4 only
4) 1, 3 and 4 only