The spans of time that make up the Earth's geologic timescale are generally defined by the different types of A foods that humans ate at a given time.
OB. geologic processes that operated at a given time.
OC. technologies that humans used at a given time.
OD. organisms that lived at a given time.
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the given statement is true.

sensory memory lasts for a fraction of seconds before the information is lost. it is the shortest -term memory and can be called as an element of memory. example: when we look at something and remember what it looks like, is just a second of observation. it degrades very quickly. it can also be considered as the process of perception rather than considering it as a memory.