Why Do Astronomers Measure Distances in Strange Units Like Astronomical

question 31

Multiple Choice

Why do astronomers measure distances in strange units like astronomical units and light-years?

• A)these units are more convenient when dealing with large distances
• B)these units are part of the metric system
• C)these units are about the same size as a typical star
• D)these units can more easily be expressed using scientific notation

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Definitions:

Geothermal Energy

Renewable energy generated from the heat stored beneath the Earth's surface, used for heating and electricity production.

Earth's Mantle

The layer of the Earth between the crust and the core, composed of silicate rocks that are rich in magnesium and iron.

Fuel Cell

A device that converts the chemical energy from a fuel into electricity through a chemical reaction with oxygen or another oxidizing agent, often hydrogen-based.

Conversion Efficiencies

The ratio of useful energy output to total energy input in a system, measuring how effectively energy resources are converted and used.