answer: Noroviruses, unlike the Ebola virus, are extremely hardy, able to travel through the air and stay for days on surfaces where they can infect new people. "Noroviruses are perhaps the perfect human pathogen," one CDC scientist declared in a scientific review.
The right answer is ultrasound.
Ultrasound is an imaging technique that uses ultrasound. It is used routinely in human and veterinary medicine, but can also be used in research and industry.
Contrast ultrasound is one that uses a contrast medium. The contrast medium composed of microbubbles is injected into the bloodstream intravenously at the time of the ultrasound examination of the patient. The microbubbles of the contrast medium are highly reflective to ultrasound during ultrasound examination; thus making it possible to image the blood vascularization of the organs for diagnostic purposes.
Answer: D. Weathering breaks down rock and other material
Explanation:
Because weathering/erosion cause rocks to break down into tiny sediments over time
A cell wall because a cell wall protects the plant from any damage
I Think The answer is c I hope it helps
