Question

select the best choice to represent how earth formed according to scientific theories. old star explosion, nebula forms, gravitational pull, spinning protostar forms, planet earth forms, many collisions occur forming craters, massive materials are thrown out. old star explosion, gravitational pull, spinning protostar forms, massive materials are thrown out, planet earth forms, nebula forms, many collisions occur forming craters. old star explosion, nebula forms, gravitational pull, spinning protostar forms, massive materials are thrown out, planet earth forms, many collisions occur forming craters. old star explosion, nebula forms, gravitational pull, massive materials are thrown out, planet earth forms, many collisions occur forming craters.

Explanation:

According to scientific theories, when an old - star explodes, a nebula forms. Then, due to gravitational pull, a spinning protostar forms. Massive materials are thrown out during the process, and later the planet Earth forms. After the Earth's formation, many collisions occur which form craters.

Answer:

Old star explosion, nebula forms, gravitational pull, spinning protostar forms, massive materials are thrown out, planet Earth forms, many collisions occur forming craters.