Rust on an artifact is an example of?

1. chemical decomposition?

2. chemical preservation?

3. physical decomposition?

4. physical preservation?

1. Chemical decomposition.

I think it would be chemical decomposition! I agree with the guy above me :o

Rust on an artifact is an example of 1. chemical decomposition.

Rust on an artifact is an example of chemical decomposition. To understand this, let's break down the options:

1. Chemical decomposition: Rust is formed when iron or steel reacts with oxygen in the presence of moisture, causing the metal to corrode. This chemical reaction leads to the deterioration and breakdown of the artifact.

2. Chemical preservation: This option refers to the use of chemicals or substances to protect artifacts from decay or deterioration. It does not apply to rust formation, as rust is an undesired chemical reaction that causes degradation.

3. Physical decomposition: Physical decomposition typically refers to the breaking down of materials through physical means, such as the tearing or crumbling of an object. Rust, on the other hand, is caused by a chemical reaction and not physical force.

4. Physical preservation: Physical preservation involves strategies to physically protect artifacts from degradation, such as storing them in controlled environments or using protective coverings. While physical preservation measures can help mitigate rust formation, rust itself is not an example of physical preservation.

So, the correct answer is option 1, "chemical decomposition." Rust on an artifact occurs due to a chemical reaction, leading to the breakdown of the metal.