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These are physical changes.
Chemical Changes
Chemical changes
The chemical composition of water remain unchanged.
Water and air
Changes gradually because each species responds differently to changes in environmental factors.
recrystallization
These are physical changes.
recrystalllization
This is called Evolution
Chemical Changes
The composition of everything and transfer of electrons. Changes in bonding and structure of compounds.
Chemical composition
Changes that occur when the composition remains the same
Adaptation is when a species is able to change over time to new changes in their environment.
Chemical changes
Chemistry