Akathisia literally means inability to sit, and is a type of movement disorder in which the patient feels extreme inner restlessness along with a forcible need or desire to be in continuous motion by performing actions such as rocking backwards and forwards when sitting or standing, marching on the spot by lifting feet and also crossing and ...
The earliest evidence for life on Earth is graphite found to be a biogenic substance in 3.7 billion-year-old metasedimentary rocks discovered in western Greenland and microbial mat fossils found in 3.48 billion-year-old sandstone discovered in Western Australia.
The Precambrian Time. The oldest period of the earthâs history lasted from the beginnings four and a half billion years ago to about 600 million years ago. At first simple forms of one-celled life developed in the oceans.Later on bacteria and algae evolved.he oldest period of the earthâs history lasted from the beginnings four and a half billion years ago to about 600 million years ago. At first simple forms of one-celled life developed in the oceans. Later on bacteria and algae evolved.