Answer:
mmm stability
Explanation: dark and blue makes chair
The problem arises with establishing whether the children have a problem because of some sort of disability or simply because they are not proficient enough in English. When a child has a problem communicating that could indicate that child possesses some kind of disability that would need to be addressed. But with linguistically-diverse children the problem to communicate might come from the their knowledge of English which can be inadequate so the to educators need to be careful not to wrongly deal with these kind of children.
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All of the following are social and cultural barriers except the currency shifts.
Language, gift-giving traditions, religious attitudes are cultural barriers. Imagine that you are speaking Spanish and you want to offer a rosary to a chinese people. He will not understand at all the meaning of your gesture, your language and the religious value of the rosary.
First one is static
Second one is round
Third one is flat
Last one is dynamic