Examine the figure below.When did the combined use of both oil and natural gas begin to nearly steadily increase beyond about 1 billion barrels equivalent? 
Definitions:
Factor-Comparison Method
A job evaluation method that determines the relative value of a job by comparing it with factor levels in other jobs.
Job-Comparison Chart
A visual tool used to compare different jobs based on specific criteria, such as responsibilities and required skills.
Compensable Job Factor
Elements of a job that are considered when determining pay, such as skill level, effort, responsibility, and working conditions.
Internal Equity
In compensation refers to comparisons made by employees to other employees within the same organization.
Q19: Tillites are _.<br>A) sediment layers formed of
Q23: The outer portion of a craton,where deformed
Q29: This fundamental principle of physics is the
Q29: Compared to continental lithosphere,oceanic lithosphere is _.<br>A)
Q30: Past greenhouse climate on Earth was associated
Q33: Which of these has not been noted
Q35: The "energy footprint" and annual CO₂ emission
Q43: What do you think the origin of
Q43: Common volcanic gases include _.<br>A) water vapor,
Q46: The Himalayas and Tibetan Plateau were produced