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

question 40

Multiple Choice

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

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

---

Definitions:

Intermolecular Forces

Forces of attraction or repulsion which act between neighboring particles, such as atoms or molecules, affecting the physical properties of substances.

Bend

To cause something to change its shape by applying force without breaking.

Saturated

Describes a chemical compound, typically a fat, that contains no double bonds between carbon atoms, allowing it to hold a maximum number of hydrogen atoms.

Carbon Atoms

Carbon atoms are the fundamental building blocks of organic molecules, characterized by their ability to form up to four covalent bonds with other atoms, including other carbon atoms.