All bird eggs are hard, there is no choice. Ones without a proper shell are defective and usually won't hatch.
Yes. They do.
Yes
The calcium that makes the egg shell makes it hard.
The shell.
An egg with an outer hard shell is called the cuticle or bloom. It helps keep out bacteria and dust.
No, boiling doesn't change the shell.
Amniotic
The shell.
you boil the egg in water and them peal the hard shell after about 10 minutes of boiling
No the volume of the egg shell doesn't
No the volume of the egg shell doesn't
amniotic
Well, The shell is rather quite fragile but the shell is a little hard.
I Will Cook The Boil Egg And I Will Eat