Question

1. according to keplers first law (law of ellipses): a) planets orbit in perfect circles b) planets orbit in ellipses with the sun at one focus c) planets orbit randomly d) planets move in straight lines

Explanation:

Kepler's First Law (Law of Ellipses) states that the orbit of a planet around the Sun is an ellipse, with the Sun located at one of the two foci of the ellipse. Option A is incorrect as orbits are not perfect circles. Option C is incorrect as orbits are not random. Option D is incorrect as planets do not move in straight lines in their orbits. Only option B matches the description of Kepler's First Law.

Answer:

B) Planets orbit in ellipses with the Sun at one focus