What was Charles Darwin's main contribution to science?
He was the first person to think of the idea of evolution
He developed the modern theory of evolution
He refuted the modern theory of evolution
He was the first person to actually witness animals
evolving

B

Explanation:

The component that Darwin proposed for development is normal choice. Since assets are constrained in nature, life forms with heritable characteristics that favor endurance and proliferation will in general leave more posterity than their friends, making the attributes increment in recurrence over ages.

they had freedom from the government and from the affairs

the declaration states, “we hold these truths to be self-evident, that all men are created equal, that they are endowed by their creator with certain unalienable rights, that among these are life, liberty, and the pursuit of happiness….”