Choose correct option for given statements:

(i) The universe is very old – almost 20 billion years old.

(ii) In the solar system of the milky way galaxy, earth was supposed to have been formed about 4.5 billion years back.

(iii) Life appeared 500 million years after the formation of earth.

(iv) The first non-cellular forms of life could have originated 3 billion years back. They would have been giant molecules (RNA, Protein, Polysaccharides, etc.).

(v) The first cellular form of life did not possibly originate till about 2000 million (2 billion) years ago. These were probably single-cells.

(vi) All life forms were in water environment only.