Answer:
4 billion years
Explanation:
Scientists have found the oldest known rocks on Earth. They are 4.28 billion years old, making them 250 million years more ancient than any previously discovered rocks. Earth formed about 4.6 billion years ago from a disk of gas and dust circling the sun.
Answer: Persia is a historic region of southwestern Asia associated with the area that is now modern Iran.
Answer:
A. Bovine
Explanation:
A bovine relates or has qualities of an ox or a cow. The rest are or relate to pigs.
I hope it helps! Have a great day!
Muffin~