Answer:
The airfield was closed in the early 1970's, but in 1996, Arnie Migliaccio proposed an idea to the National Park Service to make the neglected airfield a place to display restored aircraft. The project became known as HARP, and volunteers known as "angels" worked to help meet the project's goals.
When conducting primary research and comparing various survey methods, the least expensive method is the Online survey. This is further explained below.
<h3>What is
an Online survey?</h3>
Generally, You may gather feedback from your target audience by having them fill out a form on a website in the form of an online survey. It is possible to conduct short or lengthy surveys online.
In conclusion, When comparing the costs of different survey methodologies for primary research, the online survey consistently comes out on top.
Read more about the Online survey
brainly.com/question/13806485
#SPJ1
The picture isn't attached
Answer; Most Americans view race relations as a major issue and believe that President Trump has made matters worse, according to polling.
Explanation: