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Kavitha Kannan
's Polls
General Science
Which of the following is used as a lubricant?
Graphite
0 votes (0%)
Graphite
Silica
1 vote (100%)
Silica
Iron Oxide
0 votes (0%)
Iron Oxide
Diamond
0 votes (0%)
Diamond
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1 vote
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Wolmal
(256 symbols max)
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