what can all dogs do wall?
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dogs stare at walls, but there are some other possibilities. Staring could be a compulsive behavior, rather like compulsive disorders in people. ... Staring could also be an attention-seeking behavior.
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it is a pure single form of matter of substance has defined properties in composition is called substance example iron
types of substance
pure substance
impure substance
pure substance- it may be defined as a material which contain only one kind of atom or molecule is known as pure substance
impure substance-the is maybe e defined as a material which contact only one kind of atom or molecules is not in pure substance
Explanation:
here is your
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