Refer to the Figure

question 50

Multiple Choice

Refer to the figure.
The figure shows CO₂ uptake by various leaf layers in a tropical forest.
-If a native forest with 15 leaf layers is replaced with a palm oil plantation that has 3 leaf layers, there will be a(n) _______ of _______ maximum net CO₂ uptake because of ________.

• A) decrease; 0.7 g/m²/hr; a reduction in net photosynthesis due to fewer leaves
• B) decrease; 0.5 g/m²/hr; a reduction in net photosynthesis due to fewer leaves
• C) increase; 0.7 g/m²/hr; reduced respiration loss due to fewer inefficient leaves
• D) increase; 1.2 g/m²/hr; a greater proportion of high efficiency with top canopy leaves

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Definitions:

Reaction

A chemical process in which substances interact to form new products, typically characterized by a change in chemical composition.

Propagation Step

A phase in a chain-reaction mechanism where radicals generate new radicals, allowing the reaction to proceed in a series of subsequent steps.

Free Radical

Highly reactive atoms or molecules with unpaired electrons, involved in many chemical reactions, including those in biological systems.

Chlorination

A chemical reaction that introduces chlorine atoms into a molecule, often used for disinfection or organic synthesis.