Answer:
It's very similar to it
Explanation:
Because the atomic mass in this situation is an average so it represents all isotopes in this situation due to their abundance
Sound waves are longitudinal waves that is, are transmitted in the same direction of oscillation of the particles in the medium. Electromagnetic waves are transverse ie, the electric and magnetic fields, which are perpendicular to each other, oscillate perpendicularly to the direction of wave propagation.
Answer: The given statement is False.
According to alternative hypothesis, observed difference exists between research variables, which does not occur by chance.
Whereas, a non directional alternative hypothesis has no definite directions of the difference but a certain difference does exist.
Thus, the given statement is False.