Dark Matter Was Initially Proposed to Explain

question 2

Multiple Choice

Dark matter was initially proposed to explain

• A) black holes.
• B) stellar nebulae.
• C) the expansion of the universe.
• D) the velocities of stars and gases in spiral galaxy arms.

---

Definitions:

Formalities

Specific procedures, requirements or conditions that are mandated by law or established practice.

Partnership

A form of business organization; specifically, an association of two or more persons to carry on a business as co-owners for profit.

Leases

Contracts in which one party, the lessor, grants another party, the lessee, the right to use an asset for a specified period in return for regular payments.

Property

Legally recognized rights to possess, use, and dispose of something tangible or intangible.