Although individual continents and their species must adapt to the new climate while drifting, they also face different types of climate change. The Earth periodically shifts to extremely hot conditions between the very cold ice ages of the Earth. These changes are caused by various factors, such as small changes in the orbit around the sun, changes in ocean currents, and the accumulation of greenhouse gases such as carbon dioxide, as well as other internal resources. Regardless of the cause, these sudden or gradual climate changes force species to adapt and evolve. Extremely cold periods usually lead to glaciers, which lower sea levels. Anything that lives in the aquatic biome will be affected by this climate change. Similarly, a rapidly rising temperature will melt the ice cap and increase sea level. In fact, extreme cold or extreme high temperatures often lead to mass extinction of species that are unable to adapt in time to the entire geological time scale. Although there are few volcanic eruptions that can cause widespread damage and promote evolution, they do. In fact, one such eruption occurred in the recorded history of the 1880s. The volcanic eruption of the Krakato in Indonesia, the number of ash and debris, successfully reduced the global temperature of the year by blocking the sun. Although this has little known impact on evolution, it is speculated that if several volcanoes erupt in this way at about the same time, it may cause some serious changes in the climate, leading to changes in species. In the early stages of the geological time scale, there are a large number of very active volcanoes on Earth. Although life on Earth has just begun, these volcanoes may contribute to the early species formation and adaptation of species to help create sustainable biodiversity over time.