The solar system is about 4.6 billion years old. Scientists believe that the solar system started out as a cloud of dust and gas that was pulled together and collapsed due to the force of friction . Most of the mass of the cloud was concentrated at the center of the solar system where it became the sun while the rest flattened into a planetary disk that produced the planets, moons asteroids, and other objects in our solar system. What is one error in Mack's report? Gravity,not friction, pulled together the cloud of dust and gas. The solar system is closer to 13 billion years old. The planetary disk formed only the planets and not the rest of the objects in the solar system. Most of the mass in the cloud was concentrated near the edges of the solar system.

## Step 1<br />The problem presents a report by Mack about the formation of the solar system. The task is to identify one error in Mack's report. The options provided are:<br />1. Gravity, not friction, pulled together the cloud of dust and gas.<br />2. The solar system is closer to 13 billion years old.<br />3. The planetary disk formed only the planets and not the rest of the objects in the solar system.<br />4. Most of the mass in the cloud was concentrated near the edges of the solar system.<br /><br />## Step 2<br />We need to evaluate each option based on the known scientific facts about the formation of the solar system.<br /><br />## Step 3<br />Option 1 states that gravity, not friction, pulled together the cloud of dust and gas. This is correct according to the nebular hypothesis, which is the most widely accepted model for the formation of the solar system.<br /><br />## Step 4<br />Option 2 suggests that the solar system is closer to 13 billion years old. This is incorrect. The current scientific consensus, based on evidence from radiometric age dating of meteorite material and Earth's oldest rocks, is that the solar system is about 4.6 billion years old.<br /><br />## Step 5<br />Option 3 claims that the planetary disk formed only the planets and not the rest of the objects in the solar system. This is also incorrect. The planetary disk, also known as the protoplanetary disk, was the region surrounding the young Sun where the planets formed. However, it also contained other objects such as asteroids, comets, and meteoroids.<br /><br />## Step 6<br />Option 4 says that most of the mass in the cloud was concentrated near the edges of the solar system. This is not According to the nebular hypothesis, most of the mass of the cloud was concentrated at the center, forming the Sun.