Hi there!
Using the equation for the electric field produced by an infinite sheet of charge:

E = Electric field strength (150 N/C)
σ = Surface charge density (? C/m²)
ε₀ = Permittivity of free space (8.8542× 10⁻¹² C²/Nm²)
We can rearrange the equation to solve for the surface charge density (charge per unit area)

I think it is B the rise of the land
It is b 9.1 :) have a nice day
They differ because they are transverse wave. That is their direction of travel is perpendicular to its vibrations.
Answer:
C
Explanation:
Most probable exchange of ions occurs for option C.