answer these fast
the growth of a plant to a tree is
a .slow change b .physical change c .chemical change d.reversable change
1.A AND C
2.B AND C
3.A AND D
4.C AND D
which of the following is considered a phisical change
1.HEATING OF substance
2.COOLING OF substance
3.MIXING OF TWO
4.ALL OF THESE
SHWETA RATH

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Solution

1) 1( a & c)
2)All of the above.. but the 3 option mixing of substance can be chemical or physical change..If they react it will be chemical change but if they don't react it is physical change.

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answer these fastthe growth of a plant to a tree isa .slow change b .physical change c .chemical change d.reversable change1.A AND C2.B AND C3.A AND D4.C AND Dwhich of the following is considered a phisical change1.HEATING OF substance2.COOLING OF substance3.MIXING OF TWO4.ALL OF THESESHWETA RATH

1) 1( a & c)2)All of the above.. but the 3 option mixing of substance can be chemical or physical change..If they react it will be chemical change but if they don't react it is physical change.

1) 1( a & c)
2)All of the above.. but the 3 option mixing of substance can be chemical or physical change..If they react it will be chemical change but if they don't react it is physical change.