Question

which environmental policy must consider the expensive startup costs associated with building machines that harvest energy from clean sources?
○ reducing air pollution
○ regulating deforestation
○ introducing new farming methods
○ protecting ocean reefs

Explanation:

Reducing air pollution often involves adopting clean energy technologies (like wind turbines, solar panels) which have high upfront costs for manufacturing and installation. The other options focus on forestry, farming, and marine ecosystems, which do not center on building clean energy-harvesting machines with expensive startup costs.

Answer:

reducing air pollution