After Reading the Paragraph Below, Answer the Questions That Follow

question 15

Multiple Choice

After reading the paragraph below, answer the questions that follow.
The graph below shows records of temperature (light gray line) and CO₂ (dark gray line) over the past 1,000 years. CO₂ is recorded in parts per million (ppm) .

-If the trends shown in the graph continue, how might this affect photosynthesis?

• A)Photorespiration may increase, leading to an increase in photosynthetic production of sugar.
• B)Photorespiration may increase, leading to a decrease in photosynthetic production of sugar.
• C)C₄ and CAM plants would be unable to photosynthesize.
• D)There would be no effect on photosynthesis, since CO₂ and temperature are stable.

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Definitions:

Periodic Table

A tabular arrangement of chemical elements organized by their atomic number, electron configuration, and recurring chemical properties.

Polar Covalent Bond

A type of chemical bond where a pair of electrons is unequally shared between two atoms, resulting in a distribution of charge.

Molecules

Collections of atoms linked in a way that forms the smallest essential part of a chemical compound capable of participating in a chemical reaction.

Carbon-Hydrogen Bond

A chemical bond between carbon and hydrogen atoms, foundational to organic molecules.