Why don't short-period comets have randomly oriented orbits? ...

[jessicacav]

Why don't short-period comets have randomly oriented orbits?
 
  a. Their orbits have been altered by encounters with planets.
 b. Their orbits are altered by the Sun's gravitational pull.
 c. Their orbits have been altered by impacts from asteroids.
 d. Their orbits have been altered by the Lagrange points of Jupiter.
  e. Their orbits have been altered by solar wind particles from a CME.

Question 2

Where on Earth is the impact crater that scientists believe caused the extinction of dinosaurs?
 
  a. Flagstaff, Arizona
 b. Chicxulub, Mexico
 c. Aricebo, Puerto Rico
  d. Mauna Kea, Hawaii
 e. Antarctica

[missalyssa26]

Answer to Question 1

a

Answer to Question 2

b

[jessicacav]

Thanks for the timely response, appreciate it

[bassamabas]

Gracias!