The child is raised in isolation from human contact often show extreme, long-lasting language deficits that are rarely entirely overcome by later exposure to language. This evidence support to which aspect of language development?

The above-mentioned evidence supports the environmental aspect of language development because if a child doesn't meet the enriched language environment at the right age it affects his/her ability to develop language skills. 

Language rich environment refers to the environment which provides an opportunity where the language is seen, noticed and used by children.

Language rich environment is an essential base for language development as it:

• nurtures the expressiveness, creativity and imagination of the learners.

• lays the foundation for spontaneous language growth and development.

• addresses learner's diverse needs by a variety of learning models and techniques.

• consists of visual and performance arts which engage students in creative activity.

Hence it could be concluded that the environmental aspect of language development is correct in the context. 

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