Question

made of dust and rock particles mixed with ice methane and ammonia (like a dirty snowball)
1 point
○ comet
○ meteor
○ outer planets
○ sedna

this 19th century astronomer wrote the laws of planetary motion and has a telescope named after him.
4 points
○ galileo
○ copernicus
○ kepler
○ newton

Explanation:

First Question (1 point)

Comets are known to be composed of dust, rock particles, and ices (including methane and ammonia ices), often described as "dirty snowballs". Meteors are meteoroids that enter Earth's atmosphere, outer planets are gas giants/ice giants, and Sedna is a trans - Neptunian object, not matching the "dirty snowball" description.

Johannes Kepler, a 17th - century (note: the question said 19th century which is an error, but the key is the laws of planetary motion) astronomer, formulated the Laws of Planetary Motion. Galileo is known for telescopic observations and support for heliocentrism, Copernicus proposed heliocentrism, and Newton formulated laws of motion and gravity. The Kepler telescope is named after him.

Answer:

A. Comet

Second Question (4 points)