In the Early Universe, Which Type of Particle and Anti-Particle

question 48

Multiple Choice

In the early universe, which type of particle and anti-particle first stopped being spontaneously formed out of photons in the CMB?

• A) Protons and neutrons, because their formation requires a larger number of photons
• B) Electrons and positrons, because their formation requires a smaller number of photons
• C) Protons and antiprotons, because their formation requires higher energy photons
• D) Electrons and neutrinos, because their formation requires lower energy photons
• E) Protons, antiprotons, electrons, and neutrinos stopped forming at the same time.

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Definitions:

Consumer Needs

Consumer Needs pertain to the desires or requirements of customers that motivate their purchasing behaviors.

Chamber of Commerce

A local association to promote and protect the interests of the business community in a particular place.

Financial Services

Industries that manage money, including banks, credit unions, credit-card companies, insurance companies, accountancy companies, consumer-finance companies, stock brokerages, investment funds, and some government-sponsored enterprises.

Networking

The act of connecting with individuals or groups to exchange information and develop professional or social contacts.