it is because egg shell contains calcium and this what makes it white
Large, pale white---and they are larger than chicken eggs and have thick shells
What is a common element used to make an egg? The shells of eggs are made of Calcium.
It lay eggs with shells in the sands
Shells get their color from whatever type of mollusce made them. :)
No they do not have soft shells
Yes. Penguins are birds, and birds reproduce by laying eggs with hard shells. This is different from the eggs of reptiles and monotremes, which have leathery shells.
Scallops are not born. They hatch from eggs. Their eggs don't have shells and neither do the newly hatched scallops.
no
No
No, there are many different sorts of "eggs" that are covered with gel, mucus, or some other sort of covering. Frog eggs and fish eggs such as caviar are examples of eggs that do not have shells.
Land dwelling animal's eggs have shells (hard or soft) to keep them from drying out. Fish eggs don't need shells because being in water they won't dry out.
Like most eggs they would be softish when they were first hatched but exposure to the air makes them hard.