Convection Currents in the Atmosphere Are Driven by

question 1

Multiple Choice

Convection currents in the atmosphere are driven by

• A) The different temperatures and densities of warm and cold air masses
• B) The jet stream dipping down into the troposphere
• C) Forces that scientists cannot yet explain
• D) Bursts of energy emitted by the ionosphere
• E) The surface winds, which in turn are influenced by the Coriolis effect

---

Definitions:

Variable Overhead Efficiency Variance

The difference between the actual variable overhead incurred and the standard cost of variable overhead that should have been incurred based on the efficiency of operations.

Favorable

An accounting term referring to actual results being better than projected or budgeted figures, often used in the context of variances.

Unfavorable

A term often used in finance and accounting to describe a variance or outcome that leads to a worse financial position than expected.

Volume Variance

The difference between the budgeted volume of production or sales and the actual volume, indicating whether a business performed better or worse than expected.