Designing and constructing buildings that are energy efficient, economical, and made of recycled materials, is a trend called

A. friendly construction.

B. green architecture.

C. environmental building.

D. passive design.

E. ecology construction.

B. green architecture.

Explanation:

Green architecture or green design is a philosophy whose goal is to build buildings that minimize the harmful effects on the environment by using sustainable energy sources and using recycled materials and eco-friendly construction techniques.

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