When children hear a new word in a familiar context, they can simply add the word to the general category without fully understanding the word. this is called

When children hear new word in a familiar concept they add that word to the general category without understanding it fully this is known as Fast mapping

Explanation:

In cognitive psychology, when children learn a new concept or word by hearing it in a familiar context, with minimal exposure and without fully understanding the concept; this hypothesized mental process is known as Fast mapping.

Or we can say, fast mapping is the ability of the children to connect a word to its meaning after little exposure, without fully understanding it.

first, the romans stayed isolated because they had to defend their own territories from neighboring cities that were harassing them, like the etruscans. second, once the romans managed to defeat their neighbors, and started to expand their territory, they started to build roads and bridges. finally, now that the romans have covered their territory with roads functioning as highways, they could mobilize their legions faster to assemble larger military units in a specific place.

6.3%

explanation:

the acceptance rate for yale university is 6.3%. this means that only 6 percent of people who apply actually get accepted!