Where and by What Technique Was the Element Helium First

question 123

Multiple Choice

Where and by what technique was the element helium first discovered?

• A) in radioactive rocks, by radioactive measurements of uranium deposits
• B) on the Sun, from spectroscopy during a solar eclipse
• C) in the laboratory, by examining the spectrum of heated chemicals in a flame
• D) in the upper atmosphere of Earth, by studying the spectrum of the aurorae, or northern lights

---

Definitions:

Quick Ratio

A financial metric that measures a company's ability to meet its short-term obligations with its most liquid assets.

Cash in Hand

The amount of cash a company or individual possesses that is readily available for use.

Inventories

The complete list of items such as products, goods in production, or materials that a company holds, intended for sale or use in the production process.

Current Liabilities

Short-term financial obligations that are due within one fiscal year or the operating cycle of a business, whichever is longer.