What are Slow and Fast Changes

Q. What are Slow and Fast Changes? Give Examples. 

Slow changes happen overtime at a basic level, and fast changes happen quickly. This can be seen in the night sky that gradually brightens each morning and evening or with rotations of the planet around the sun. Slow changes cannot be felt or noticed by humans because they are gradual and do not feel like much is happening. On the other hand, fast changes happen quickly and are easier for humans to notice; for example, when someone throws a ball, it goes up into the air very high but then falls back down fast. Changes can also be about temperature or air pressure, changing slowly or quickly depending on the location. The speed at which a change occurs relates to its intensity and how the body reacts to it.

The main purpose of slow changes is to develop new characteristics within an organism to adapt, survive, and reproduce more efficiently. For example, plants become more cold-resistant when they experience cold temperatures every winter. Humans also experience slow changes, such as the growth of human cells or bones. Slow changes occur because of cell division and biological processes. 

In chemistry, slow and fast changes are two types of transformations. A slow chemical reaction occurs when a reactant reacts with a catalyst before being consumed. In contrast, a fast chemical reaction occurs without a catalyst and is called an elementary reaction.

Examples of slow reactions:

Ripening of fruits, Day and night formation, Rusting of iron.

The changes which take place in a short period are called fast changes.

Examples of fast reactions: 

The bursting of firecrackers, Burning of paper, Stretching of a rubber band.