A and D have a good day bye bye bye
Answer:
Explanation:
Diffusion is net movement of anything from a region of higher concentration to a region of lower concentration. Diffusion is driven by a gradient in concentration. The concept of diffusion is widely used in many fields, including physics, chemistry, biology, sociology, economics, and finance.
When sound waves hit a solid surface they either reflect, refract, or absorb.
Echo's are caused by the reflection of sound waves.
Answer:
If you got a flu shot this year, next year you'll need it again.
Explanation:
This is because the virus changes, usually rendering the previous year's vaccine partly or totally useless. hope this helps you :)
The Coronal plane also called the frontal plane divides the body into anterior and posterior halves .
