The Keeling Graph, Although It Has Yearly Oscillations, Shows That

question 18

Multiple Choice

The Keeling graph, although it has yearly oscillations, shows that the concentration of CO₂ in the atmosphere __________.

• A)has sharp increases about every five years.
• B)is remaining constant.
• C)is steadily rising.
• D)is slowly decreasing.

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Definitions:

Blood Flow Velocity

The speed at which blood moves through the vessels, which can vary depending on vessel size, blood viscosity, and cardiac output.

Cardiac

Relating to the heart and its functions or diseases.

Oscilloscope

An electronic instrument used to observe and measure varying electrical voltages in the form of a two-dimensional graph.

Electrical Wave

A form of energy wave characterized by the movement of electric charges, which can be used in various technological and medical applications.