Conclusion: seeing eye dogs are an effective way to assist those with vision loss. a study was conducted to test the effectiveness of seeing eye dogs. people with different ranges of vision loss were included in the study. which question would in determining whether the conclusion above is valid

By asking intellect based question such as "Is your dog helping you in identifying the traffic signal light and how do they interpret their message to you?"

Explanation:

Seeing eye dogs is a good way to assist a person with impaired vision. Since dog can easily visualize physical barriers or obstruction such as pot hole on road , car coming in the direction of walking etc.,  hence, in order to test the validity of the conclusion it would be beneficial  to ask intellect based question from a person owing Eye Dogs

For example -

Is your dog helping you in identifying the traffic signal light and how do they interpret their message to you?

preservation because he preserves part of the land and preserves means save

explanation: