Given a Typical Geothermal Gradient of 25°C/km,oil Is Generated from Kerogen

question 16

Multiple Choice

Given a typical geothermal gradient of 25°C/km,oil is generated from kerogen at ______,corresponding to temperatures of _____.

• A) 100-400 m; 25-45°C
• B) 3.5-6.5 km; 90-150°C
• C) 1.0-2.5 km; 50-80°C
• D) 7.0-10.0 km; 180-360°C

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Definitions:

Positive Exponents

Refers to exponents that are greater than zero, used to denote the number of times a base is multiplied by itself.

Expression

An expression in mathematics is a combination of symbols that can represent a number, variable, operation, or a combination thereof, without an equality sign.

X

Often used to represent an unknown variable in algebraic equations or the horizontal axis in Cartesian coordinate systems.

Y

Often used to denote the dependent variable or the output value in a function, commonly represented on the vertical axis in a Cartesian coordinate system.