Question

according to keplers first law, the orbit of a planet around the sun is:
an ellipse with the sun at one focus
a perfect circle with earth at the center
a spiral pattern caused by gravity
question 6
how did earth likely form?
from pieces of other planets colliding
after water appeared on the moon
from dust and gas that clumped together in a rotating disk

Explanation:

Question (about Kepler's First Law):

Kepler's First Law states that the orbit of a planet around the Sun is an ellipse, with the Sun at one of the two foci. The option "A perfect circle with Earth at the center" is the geocentric model (disproven), and "A spiral pattern caused by gravity" is incorrect as planetary orbits are elliptical, not spiral.

The leading scientific theory for Earth's formation is that it formed from dust and gas (part of the solar nebula) that clumped together in a rotating disk (solar nebula theory). "From pieces of other planets colliding" is more related to Moon formation (giant - impact hypothesis), and "After water appeared on the Moon" has no scientific basis for Earth's formation.

Answer:

A. An ellipse with the Sun at one focus

Question 6 (How did Earth likely form?):