Which imaging technique uses x-rays to make cross-sectional images of the body? mri ct scan x-ray imaging ultrasound

CT scans uses X-rays to make cross-sectional images of the body

Computer tomography (CT) uses X-rays to produce cross-sectional images of the body. CT scanning is fast, painless, noninvasive and accurate. In emergency cases, it can reveal internal injuries and bleeding quickly enough to help save lives. CT images of internal organs, bones, soft tissue and blood vessels provide greater detail than traditional x-rays.

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.