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.
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Answer:
the eye
Explanation:
the center of a hurricane is the eye :)
hope this helps have a great day
Answer:
A
Explanation:
The prokaryotic cells have nucleus in them
Answer:
The first option, the second option and the last option is what applies during the electron transport chain
Electrons are removed from their carrier molecules as the molecules will lose energy bit by bit
Protons are moved across a membrane
Oxygen is not a waste product since it is very useful, water is the waste product
Carbon Dioxide is released as it is another waste product
Answer:
The air in the lungs has a higher concentration of oxygen than that of oxygen-depleted blood and a lower concentration of carbon dioxide. This concentration gradient allows for gas exchange during respiration.
Explanation: