Answer:
<em>d</em><em>.</em><em> </em><em>w</em><em>o</em><em>o</em><em>d</em><em>,</em><em> </em><em>b</em><em>a</em><em>m</em><em>b</em><em>o</em><em>o</em><em> </em><em>a</em><em>n</em><em>d</em><em> </em><em>w</em><em>i</em><em>n</em><em>d</em><em>.</em>
Explanation:
wood is a natural, renewable, and sustainable material
for building, with a lighter carbon footprint than steel or
concrete. maximizing wood use in both residental and
commerical construction could remove an estimated 21
million tons of c02 from the atmosphere annually - equal
to taking 4.4 million cars off the road.
bamboo is a really exceptional green building material.
it is a sustainable material that requires very less energy
to nurture, restrains soil erosion, supplies biofuel, extends
wildlife refuge, and manufactures a wholesome food source
for both humans and wildlife.
the nation's wind supply is abundant and inexhaustible. over
the past 10 years, u.s. wind power capacity has grown 15% per
year, and wind is now the largest source of renewable power
wind is now the largest source of renewable powerin the
united states. it's sustainable. wind is actually a form of
solar energy.
