Spectra for the Cygnus Loop and the Orion Nebula Are

question 37

Multiple Choice

Spectra for the Cygnus loop and the Orion nebula are shown above. Which of these is seen in the Orion nebula, but is not clearly visible in the Cygnus loop spectrum?

• A)atomic hydrogen
• B)atomic helium
• C)ionized oxygen
• D)ionized sulfur

---

Definitions:

Honest Pricing

A pricing strategy that openly displays the true cost of goods or services without hidden fees or misleading discounts.

Replenishment Time

The duration required to refill inventory or stock, from the moment an order is placed until its receipt and readiness for sale or use.

Lead Time

The amount of time that elapses between the initiation of a process and its completion. In supply chain management, it often refers to the time from placing an order to its delivery.

Ordering

The process of requesting and procuring goods or services from suppliers or vendors.