Sedimentary deposits from this glaciation are found on virtually all continents, and were recognized in Arctic Norway as long ago as 1891 by the geologist Hans Reusch. It has been estimated in different ways that the Marinoan snowball earth lasted for 6-12 million years, but none of the estimates is highly reliable.he Makganyene snowball earth is broadly associated in time with the rise of free oxygen, molecular O 2, the most profound revolution of the Earths surface (atmosphere, oceans, crust and life) in its entire history.
Report Abuse. To be 'emotionally retarded' simply means that a person has not matured emotionally. For example he/she may be 30 years old, have grown in height and be very intelligent but has the emotions of a 15 year old. The person may do very well at school or work but is known as being a 'big kid'.
Scientists have recently discovered keys to the neural mechanisms behind the brainâs response to fear, including its extinction, which may help improve treatments for anxiety disorders and other neuropsychiatric conditions.The amygdala is essential for decoding emotions, particularly threatening stimuli.Anxiety is a psychological response to perceived danger.â. Fear is generated by a specific stimulus. Seeing a snake in the grass, for example, can trigger a fear response. Anxiety, which is not necessarily tied to a specific stimulus, is a feeling of being at risk, but from no imminent danger.