"dasha was raised in an orphanage in russia. although she is now 12 years old and living with her adoptive family in england, her speech is very delayed and she has problems with grammar. this indicates that she was not encouraged to talk between the ages of a sensitive period for language."

1 and 3 years

Explanation:

The sensitive period for language starts from the age of seven months to 2.5-3 years of age. By the age of three, a child ideally starts speaking of 2-3 word sentences. The prenatal influence on the child's language development is very important, as the initial phase of a child's life demonstrates how the child is going to develop his or her skills later on in life. In this period only the growth of vocabulary occurs. In the first few years of life language develops readily and after that language acquisition is difficult as well as less successful.

stewards ice box was the purchase of alaska from russia and it was called that because people thought it was not a good idea to purchase alaska

the answer is solomon northrup. he was a free-born african american, abolitionist and professional violinist that was drugged, kidnapped and sold as slave in 1841 and remained in captivity until 1853 where he regained his freedom with the of the then-governor of new york, washington hunt. he wrote and published his memoirs "twelve years a slave" in 1853, and in this text, he tells the story of his escape thru one of louisiana's swamps (the great pacoudrie swamp) in which he ended up covered in green slime from crossing the surface of the dead water.