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
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.