Praxis II General Science: Content Knowledge Exam Prep

Category - Praxis II General Science Content Knowledge Test Prep

Approximately how many years ago was the earth formed?
  1. 4.5 billion years ago
  2. 2.5 billion years ago
  3. 4.5 million years ago
  4. 2.5 million years ago
Explanation
Answer: A- It is believed that the Earth was formed 4.5 billion years ago. Scientists believe that this age is ? the age of the universe.
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