houses, green buildings, energy

The (a)   (wood that has been processed into beams or planks) for the new house arrived this morning.

Solar panels use (a)   (able to be used again or easily replaced) energy from the sun.

The (a)   (basic services like water, electricity, and heating) in the new apartment work perfectly.

Workers set up (a)   (a temporary structure on the outside of a building) around the building to do repairs.

A heavy (a)   (a long, sturdy piece of wood or metal used to support buildings or structures) supports the ceiling.

The carpenter installed a (a)   (a piece of wood or metal that supports the floor) under the new floorboards.

Scientists are trying to (a)   (to control and use the natural forces of the world) wind energy more efficiently.

The new (a)   (a place where electricity is produced) was built to meet the city's growing energy needs.

The rainwater flows into the (a)   (a channel along the eaves of a roof for carrying off rainwater) during storms.

This new method is more (a)   (achieving maximum productivity with minimum wasted effort) than the old one.