Answer:
Explanation:The only difference between these different types of radiation is their wavelength or frequency. Wavelength increases and frequency (as well as energy and temperature) decreases from gamma rays to radio waves.
I think it is b..................................................
Answer: 19.4 g/cm3
Explanation: density is the relationship between mass over volume.
So density of gold is 15.7g/0.81cm3 = 19.4 g/cm3
An esker is a winding ridge that is typically composed of gravel/assorted sediment that has been created from the melting/departure of a glacier. They usually span a long distance.
