Question

4 multiple choice 2 points according to astronomers, the age of the universe is estimated to be 1.3 billion years 4.6 billion years 7.9 billion years 13.8 billion years 5 multiple choice 2 points fourteen billion years represents the approximate age of earth earths moon our solar system the universe 6 multiple choice 2 points which of the following best describes the inner planets of the solar system? large gas planets with thick atmospheres small planets of ice with elliptical orbits dense, rocky planets with few moons barren planets with rings of gas and dust

Explanation:

• Question 4: Astronomical research indicates the universe's age is approximately 13.8 billion years.
• Question 5: Fourteen billion years is close to the estimated age of the universe.
• Question 6: The inner planets (Mercury, Venus, Earth, Mars) are dense, rocky, and have few moons.

Answer:

• Question 4: 13.8 billion years
• Question 5: the universe
• Question 6: Dense, rocky planets with few moons