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Subjects
Science State Board
Class 7
Changes around us
Chemical changes
7.
Fermentation, periodic and non-periodic changes
Exercise condition:
6
m.
Match
the
following
:
Answer variants:
Heat is the reactant
New substance formed
Metals
\(60\) to \(100\) beats per minute
1
.
Chemical change
-
2
.
Endothermic change
-
3
.
Heartbeat
-
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