Answer:
Dehydrated foods
Velcro
Explanation:
Dehydrated foods were one of the great creations of the space race. This type of food remained nutritious and allowed the astronauts to stay strong, but since all the water was removed, these foods weighed only 20 percent of their original weight, facilitating transport and storage.
Velcro was also created by NASA during the space race. The purpose of Velcro was to facilitate the moment when astronauts had to wear their clothes in environments with very low gravity.
Answer: B. The Boston Tea Party
What I can understand from your question, rational use suggest that you use things in a rational way or in a logical,astute,prudent way. This means, for example, you are lost in an island and you know someone is going to look for you in the following 10 days, still you dont know in which day you are going to be rescued. Because you are an inteligent human being you will decide to use your things in a rational way as if you dont do it you will have a shortage of supplies and most probably you are going to die.
-Hope this works...