Answer:
True
Explanation:
The physical changes are reversible in most cases and these changes are not the chemical changes which means that it is only the change in its state not in their nature. Just take the example of water, on cooling it becomes solid and change in color can be seen which is white in solid form and colorless in liquid form. This is also reversible and is a physical change. This means that physical changes can be identified at macroscopic level. Hence the answer is true.
Amino acids are the basic parts of proteins
Ewdrqw3ecdr4qwe4rfwqefq343rfqweftrweqf
Answer:
The answer is B
Explanation:
The answer is B because representative particles can only be atoms.
The second one is the way to go.
