Why Won't Pluto Collide with Neptune

question 73

Multiple Choice

Why won't Pluto collide with Neptune?

• A) Pluto orbits the Sun exactly two times for every three Neptune orbits, which ensures they never come close together.
• B) Pluto is always much farther from the Sun than Neptune.
• C) Pluto's orbit never comes anywhere close to Neptune's orbit.
• D) Actually, a collision of the two is inevitable within the next billion years.

---

Definitions:

Communicable Disease

Illnesses caused by viruses, bacteria, or other pathogens that can be spread directly or indirectly from one person to another.

Nonsmokers

Individuals who do not engage in the activity of smoking tobacco products.

Noncommunicable Diseases

Chronic diseases not passed from person to person, such as heart disease, diabetes, and cancer.

Pathogens

Microorganisms, such as bacteria, viruses, and fungi, that can cause disease in humans and other organisms.