Biology, 25.02.2021 21:00 welathyasf
What are two ways in which ultrasound technology produces images?
A. By detecting the frequencies of emitted sound waves
B. By using sound in frequencies that reflect off body tissues
C. By measuring the time it takes for reflected sound waves to be
detected
D. By the absorption of sound waves in the body
Answers: 1
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How do you think earths interior affects what is happening on the surface? 2. how do fossils support the continental drift hypothesis? 3. how does sea- floor spreading support the hypothesis of continental drift? 4.what do scientists observe when they studied the magnetic fields of rocks on the sides of mid-ocean ridges? 5. what is a tectonic plate ? 6. explain mantle convection 7.how can movements of the continents affect earths climate? 8. what occurs during drifting?
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What are two ways in which ultrasound technology produces images?
A. By detecting the frequencies o...
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