In the solar system of the milky way galaxy, earth was supposed to have been formed about…… billion years back

In the solar system of the milky way galaxy, the earth was supposed to have been formed about

In the solar system, earth was supposed to have been formed about

Earth was formed _____ billion years ago.

Carbon dioxide in the perimitive earth is said to have been formed from

According to the theory of special creation, earth is supposed to be about _______ years old.

According to the theory of special creation, earth is supposed to be about _______ years old.

The Sun, which is 2.2 xx 10^20 m from the center of the Milky Way galaxy, revolves around that center once every 2.5 xx 10^8 years. Assuming each star in the Galaxy has a mass equal to the Sun's mass of 2.0 xx 10^30 kg, the stars are distributed uniformly in a sphere about the galactic center, and the Sun is at the edge of that sphere, estimate the number of stars in the Galaxy.

The first non-cellular form of life could have originated ____ billion years back

The first non-cellular form of life could have originated ____ billion years back