Answer:
People can help prevent erosion to the coastline by limiting the construction of seawalls and sandbags that lead to beach erosion. Communities should preserve natural sand dunes, as they protect the coastlines from erosion. Man-made sand dunes actually do the opposite. It is important to consider that natural sand dunes are made of layers of different types of sand, which enables the wind to gather sand in a specific spot instead of reducing it, while also allowing vegetation to grow deeper and protect the coastline.
Explanation:
Hope this helps
frequency's unit is Hz which mean cycles per second
given frequency * wavelength = speed of wave
speed of light = 3x10^8 m/s
wavelength = 680nm = 680x10^-9 m
frequency * 680x10^-9 m = 3x10^8 m/s
frequency = 3x10^8 / 680x10^-9
= 4.41x10^14 Hz
= 441x10^12 Hz
= 441 THz
which is the frequency for red light
It’s common, When exiting the vehicle, drivers reach for the door handle with their right hand, a move that forces them to turn upper their body to the left, effectively bringing the street behind them into their field of vision.
D) oral surgeon
Hope this helps!!(:
