Respuesta :
The three last ice ages were in the periods between 450-420 mya, 360-260 mya, and 34 mya to present.
Explanation:
The ice caps on the poles, or at least one of them, form when there is a global cooling off. The temperatures drop across the planet, and that results in the poles and the surrounding areas to start freezing. As the ice spread, ice caps are formed. The ice caps can be limited only in the Arctic and Antarctic circle, but they can also move much further into the lower latitudes, all depending on the severity of the climate conditions.
- In the last 540 million years, the Earth has experienced three periods of global cooling, or ice age.
- The first of these periods was the Andean-Saharan ice age, lasting between 450 and 420 mya.
- The second has been the Karoo ice age, lasting staggering 100 million years, from 360 to 260 mya.
- The most recent is the Late Cenozoic ice age, starting from 34 mya and still going on, thus we are living in an ice age at the moment, just that we are not in a period of glaciation.
Learn more about global warming https://brainly.in/question/2057145 #learnwithBrainly
Answer:
Cause of Ice Age- The ice age or severe winter time duration is mainly caused by the variation in the time and intensity of Light. As the light coming from the sun has a very effective nature on earth's atmosphere and overall environment of the surface of the earth.
Explanation:
- Andean-Saharan ice age(460 to 430 million years ago)- It caused the mass extinction of beings, and after a brief duration of time. The plants covered most of the surface of the earth. As it also said that due to these high number of plants the next ice age was caused. As it covered the poles of the earth body.
- Karoo ice age(360 to 260 million years ago):karoo ice age operated much like the same as that we are living in now.
- Antarctica freezes over(14 million years ago): Currently, we are living in this ice age. As the poles of the earth are covered by ice caps.
