Which Statement Is Most Correct Concerning Volcanic Effects on Our

question 114

Multiple Choice

Which statement is most correct concerning volcanic effects on our atmosphere?

• A)Active volcanism is responsible for maintaining atmospheric levels of nitrogen.
• B)Gases from volcanoes condense to make natural fertilizer, boosting plant growth.
• C)If it were not for active volcanism there would be no free oxygen in the atmosphere.
• D)Pollution of the atmosphere by sulfur compounds contributes significantly to acid rain.

---

Definitions:

Differential Pinion Gears

Small gears within the differential that engage with the larger ring gear to allow wheels on the same axle to rotate at different speeds.

Low Axle Lube Level

Low axle lube level indicates an insufficient amount of lubricant in the vehicle's axle system, which can lead to increased friction and damage.

Pinion Gear

A small gear that engages with a larger gear or rack, often used to transmit rotational motion in machinery.

Tooth Contact Pattern

The intermesh contact surfaces between a pair of mating gears; usually no-load tested using machinist’s (Prussian) blue or other semifluid test media.