What Is One "Low-Tech" Method Currently Available to Actively Remove

question 49

Multiple Choice

What is one "low-tech" method currently available to actively remove CO₂ from the air?

• A)reforestation of previously cleared landscapes
• B)capturing CO₂ in smokestacks (using smokestack scrubbers)
• C)using iron and other supplements to fertilize the ocean (increase phytoplankton biomass)
• D)expansion of rice farming
• E)None of the answer options is correct.

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Definitions:

Variable Cost

Costs that change in proportion to the level of goods or services a company produces.

Fixed Cost

Costs that do not vary with the level of production or sales, remaining constant even when the volume of output changes.

High-low Method

An approach used in cost accounting to estimate variable and fixed costs based on the highest and lowest levels of activity.

Variable Utilities Cost

Expenses for utilities that fluctuate based on consumption levels, such as water, electricity, and gas.