An Environmental Scientist Is Least Likely to Be Involved with Which

question 9

Multiple Choice

An environmental scientist is least likely to be involved with which of the following?

• A)studying X -ray emissions for evidence of black holes
• B)studying the relationship between soil fungi and aspen trees in areas that are being restored after oil sand mining
• C)helping a rancher determine the best ways to rotate herds of cattle to reduce erosion
• D)determining the best fuel to generate electricity for a growing city in Arizona
• E)launching NASA satellites that monitor changes in carbon dioxide production on Earth

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Definitions:

Apparent Power

The total power in an AC circuit, represented as the product of voltage and current without factoring in the phase angle, measured in Volt-Amperes (VA).

Applied Voltage

The voltage that is applied across a component or circuit, initiating the flow of current.

Inductive VARs

In power systems, inductive VARs (Volt-Ampere Reactive) are reactive power components generated by inductive loads, contributing to the overall power factor but not to the actual work performed.

Power Factor

A dimensionless measure of how effectively electrical power is converted into useful work output, particularly the ratio of real power to apparent power in a circuit.