Answer:
The correct match is -
Precambrian - When Earth formed
Mesozoic - The age of dinosaurs
Paleozoic - When most of our limestone and coal formed
Cenozoic - The era of humans
Explanation:
Different era or age of geological period is known for a specific event or characteristic of the particular geological era o period. The given geological periods are known for the following events:
1. Precambrian era is the earliest time of earth history and is known as the time when the earth is formed.
2. Mesozoic era is known for the time period that is dominated by the dinosaurs and all others animals were comparatively less.
3. Paleozoic is the era that is known for the most of lime-stones and coal formed.
4. Cenozoic era is known for the bloom or evolution and increase of mammals including humans during Holocene.
