According to scientific evidence, the age of the earth is about

● 3.5 billion years old
● 4.6 billion years old
● 7.2 billion years old
● 2.3 billion years old

With these question would be nice i needs them in a hurry which nation leads eastern europe in nuclear energy usage? a ukraine b lithuania c slovakia d solvenia which eastern european nation is popular with skiers? a czech republic b estonia c bulgaria d none are

Most people can afford to spend approximately 2 ½ times their gross annual income for the purchase price of a home

How does lithosphere behave as a system ?