A learner living in Srinagar opts for Malayalam as her third language. Within a year, she is able to speak and read it through deliberate classroom exposure and interactive exercises. What is this phenomenon known as?

It is expected in a language classroom that learners work in and work with language. This is known as:

Which of the following is widely accepted as a major fundamental difference between language acquisition and language learning?

Raj is an engineer who moves from Punjab to West Bengal, where he naturally picks up the Bengali language within seven months through daily interaction. Now he speaks Bengali very well. What is this process known as?