The correct answer of the given question above would be option D. The option that did not occur during the Cenozoic era is the formation of the ozone layer. The ozone layer has long been there before any era since it is part of the earth's atmosphere. Hope this answer helps.
Due to the abundant sunlight,
Suitable temperature
Excessive rainfall on a daily basis leads to flirtatious turnover of nutrients and plant growth is prompt.
Texas coast in 1926 and 1932. The last seal recorded to be killed by humans was killed on the Pedro Cays in 1939.
