Question

E. Solve the crossword.
1. (-)
of organisms is irreversible.
2. (1) Rust is formed when iron reacts with
in the presence of water.
3. (1) Digestion of food is a
change.
6
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Answer 1

2•Oxygen

3•Chemical change

rest of the question is not understandable

Answer 2

Answer:

3) chemical change

2) air

I only know 2 answers

hope it helps you