How an ultrasound is able to produce images of body structures by <span>the sound waves which reflect off of the soft tissue, and a computer converts them into sonograms or visual images. Hope this is the answer that you are looking for. Have a great day!</span>
Answer:
National security is basically the government ensuring that the state, which includes the citizens, economy or institutions is protected
Because the Randolph Field in San Antonio was the leading air base in the United States, thus, it will be concluded that the state where it is based provided an important contribution to NASA Space Race.
<h3>What iss the Randolph Field?</h3>
The Randolph Field was a U.S. Army Air site for flying training facility for the during its entire existenceb in the 1900s.
The Field was located in the area of San Antonio, Texas, USA.
Hence, it will be concluded that the state (Texas) where it is based provided an important contribution to NASA Space Race.
Therefore, the Option A is correct.
Read more about Randolph Field
<em>brainly.com/question/14695951</em>
Answer:
true
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It is populations ******************