Sadira makes a graphic organizer to show how geologists and archaeologists use radioisotopes.

which labels belong in the regions marked x and y?
x: uses carbon-14
y: uses uranium-238
x: uses uranium-238
y: determines ages of objects
x: determines ages of objects
y: uses uranium-238
x: uses isotopes with short half-lives
y: determines ages of objects

there are no contact forces mentioned on the list of choices that you've provided.

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.