Which One of the Methods Below Enables Astronomers to Measure

question 18

Multiple Choice

Which one of the methods below enables astronomers to measure the distance of a star near the sun in our galaxy?

• A) sound echoes knowing the speed of sound and time
• B) parallax using Earth's orbit
• C) human binocular vision
• D) Balmer series
• E) none of the above

---

Definitions:

Catalyzes

Increases the rate of a chemical reaction without undergoing any permanent chemical change, typically referencing the action of enzymes.

Enzyme

Biological catalysts that speed up chemical reactions in living organisms without being consumed themselves.

Enzyme Catalysis

The acceleration of a chemical reaction by a protein catalyst, known as an enzyme.

Zero-Order Reactions

Chemical reactions where the rate is independent of the concentration of the reactant(s).