Question

T.
Tick (v) the correct option to complete each sentence.
1 Melting of copper metal when heated to a very high temperature is...
irreversible
chemical Ophysical
harmful
2. When a piece of paper burns, it undergoes...
an irreversible change
a reversible change
no change
a desirable change
3. Digestion of food is...
an undesirable change
a desirable change
a physical change
a fast change
4. When a candle burns, heat energy is...
absorbed
neither absorbed nor released
used
released
5. Germination of a seed is...
an undesirable change
an irreversible change
a physical change
O a fast change
6. When a firecracker bursts, it is a...
physical change
chemical change
slow change
reversible change
7. Melting of ice is...
a reversible change
a harmful change
a chemical change
an undesirable change
00​

Answer 1

Answer:

a a c b a c b

Explanation:

please make the answer brainliest

Answer 2

Answer:

no answerksgsia vssgissfisfs