Because chemical changes result in different substances, they often cannot be undone. Some chemical changes can be reversed, but only by other chemical changes.
Yes, of course, a good example would be us.
Answer:
The two factors that affect the type of Shadows formed are stated below ::
- The distance between the source of land and the object.
- The angel where the ray of light falls on the object.
Answer:
Wave X is moving the fastest.
Explanation:
As we know that the speed of the wave is given as the product of frequency and wavelength
so here we will have

now for wave X

now the speed of this wave is

now for wave Y

now the speed of this wave is

now for wave Z

now the speed of this wave is

So correct answer will be
Wave X is moving the fastest.
No isnt it decreasing to the right in a negative acceleration