Question

Classify the following change in as many ways as possible.
Weathering of rock

Answer 1

The following changes were observed during the weathering of rock:

Slow change: The type of changes that occurs over a long period of time are considered slow changes.

• Weathering of rock is a slow change because it takes place over a long period of time.
• It does not happen too quickly because the underlying phenomena are quite complex.

Physical change: A change in which only the physical properties of any substance get changed is called a physical change.

• During a physical change, no new substance is formed.
• It is a physical change because it involves the disintegration of rocks.

Non-periodic change: The changes that do not occur periodically at regular intervals are known as non-periodic changes.

• Weathering is a non-periodic change because it takes place at its own pace.
• No specific time frame is required for it to take place.

Irreversible change: The change which cannot be reversed even by changing conditions is said to be an irreversible change.

• Weathering is an irreversible change because once the disintegration is done, we cannot get the original form back.