Lungs were needed so that they could survive on land for an length of time. But they could still lay eggs in the water.
To move away from the water it was necessary that eggs had shells, so they didn't dry out during development.
Both were important, but the answer has to be lungs. Without lungs, they wouldn't have been able to get away from the water at all, so shelled eggs would have served no purpose anyway.
Iqbal Masih was famous for standing up for what he believed in. He ran away from every factory he worked at, and is responsible for the freeing of many bonded laborers.
Perseus Freeing Andromeda was created in 1510.
Freeing Bernie Baran was created in 2010.
The freeing of slaves is known as freedman. This was back in history.
Nephrolysis is the procedure for freeing a kidney from adhesions.
That is the correct spelling of "free" (unhindered, or without cost).
German Committee for Freeing of Russian Jews was created in 1914.
The most famous Argentine is José de San Martín (1778-1850), known as the Protector of the South, who was principally responsible for freeing southern South America from the Spanish yoke.
Various individuals and groups were involved in freeing individual enslaved people, including activists, abolitionists, and organizations such as the Underground Railroad. Some famous figures include Harriet Tubman, Frederick Douglass, and William Lloyd Garrison, who played roles in helping enslaved individuals escape to freedom. Additionally, the Emancipation Proclamation issued by President Abraham Lincoln played a significant role in freeing enslaved people in the United States during the Civil War.
Jefferson Davis
Abraham Lincoln was credited with freeing the slaves and stopping slavery of people.
Manumission