Which two statements describe how ultrasound technology produces an image of a baby before it is born? A. An image is created based on the frequency of reflected X-rays.

B. Body tissues absorb high-frequency sound waves, producing an image.

C. An image is created based on the amount of time it takes for a sound wave to return.

D. Tissues in the baby's body reflect high-frequency sound waves.

C,D

Explanation:

an image is created based on the amont of time it takes for a sound wave to return

Tissues in the babys body reflect high-frequency sound waves

as we probably am aware that our atmosphere or air have various levels, each level has different gasses, and each gas has another porousness. at the point when the light originates from lower porousness to higher penetrability, it alters its course. with the goal that implies that when the light originates from the moon to the earth, it alters it's course a lot more occasions. it essentially implies that the state of the light piece of the moon is changed on the earth.

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