Question

About how many years ago did the ocean form on earth?

• A. 4500 Million year
• B. 4000 Million year
• C. 5000 Million year
• D. 5500 Million year

Answer 1

Answer:

B. 4000 Million year

• Oceans formed on Earth about 4000 million years ago

• Life first appeared in the ocean about 3800 million years ago