Answer:
The Dani's tribe language does not limit their color perception and understanding.
Explanation:
The Dani tribe only used and knew two color terms, which were black and white. Being that they had no knowledge of other colors in their language, Heider decided to test their ability to learn and recognize color. She showed them color chips for focal colors and non focal and tested them on well they remembered said colors. The test results showed that both the Dani tribe and English speakers struggled to learn non focal colors but had no trouble learning about focal colors. This showed that even language (the Dani tribe had no words for colors) does not affect negatively the understanding of focal colors.
For the first red, you don't need an article before "relationship".
When you're saying "type of [word]", do not put any article before that word.
Example: "a type of device"
Not too sure about the "your back" parts. It could be your teacher does not like repition.
Also not too sure about "did". He probably wanted you to use the word "felt" instead of "did feel"
The first word of the last paragraph should be "in" not "at".
The red commas definitely do not need to be there.
Don't know why he marked "time to" and "to" red.
The process of determining what to study is especially very important because the prepared mindset of a person is necessary in undertaking a new endeavor in life especially when it is about studies. It is important that you should choose course that fits your capability or the one which you like doing the most in order to bring out the best in you.