El nacimiento del Sistema Solar

The solar system formed around 5 billion years ago from a rotating cloud of gas and dust. Under gravity, the core of this cloud became dense and hot, leading to nuclear fusion and the birth of the Sun. Lighter gases moved outward, while heavier materials formed rocky planets near the Sun. In colder regions, ice and gas accumulated, forming gas giants. The solar system is approximately 4.6 billion years old and well-preserved.

What was the initial state of the solar system before the Sun was formed?

• A solid mass of rock

• A gigantic cloud of rotating gas and dust

• A collection of small asteroids

• A large body of water

What process marked the birth of the Sun?

• Accumulation of gases

• Formation of ice

• Nuclear fusion reactions

• Condensation of water vapor

What caused the formation of rocky planets near the Sun?

• The expulsion of lighter gases

• The accumulation of ice

• The gravitational pull of the Sun

• The presence of water vapor

How did the gas giant planets form in the outer regions of the solar system?

• By the collision of rocky planets

• Through the accumulation of ice and gas

• By the condensation of water vapor

• Through the melting of metals

Approximately how old is the solar system?

• 2 billion years

• 4.6 billion years

• 5 billion years

• 3 billion years