The correct answer is Danube
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A cloud collapses to form a star and disk. Planets form from this disk. According to our current understanding, a star and its planets form out of a collapsing cloud of dust and gas within a larger cloud called a nebula.
The Earth is thought to have been formed about 4.6 billion years ago by collisions in the giant disc-shaped cloud of material that also formed the Sun. Gravity slowly gathered this gas and dust together into clumps that became asteroids and small early planets called planetesimals.
Perhaps the composite cone volcanoes
Answer: physical geology
Physical geology is the division of geology which studies earth's materials such as rocks, minerals, and soils and how they have formed in the surface and interior of the earth through time. It also studies the dynamic forces that caused that cause the formation.
