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JAMB Biology 2017 Paper
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Question : 13
Total: 49
Which of the following scenarios is an example of cohesion?
Water molecules stick to the surface of a mirror.
Water sticks to the walls of blood vessels.
Water molecules stay on the tip of a pine needle because the water is attracted to the surface of the needle.
Water molecules stick to one another and form a bead
Validate
Solution:
Cohesion is an ability of water molecule to stick to one another due to the presence of hydrogen bonding
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