1
Even though __ efforts are being made, with the destruction of their natural habitat, orangutans are listed as an endangered species.
2
__ development is meeting today's needs of development without compromising future generations' ability to develop.
3
__ your waste into suitable colour-coded containers is good waste management. (sorting)
4
__ like wind, solar, geothermal, hydrogen and biomass play an important role in the future of our nation.
5
The Nation's natural __ include its minerals, energy, land, water, and biota.
6
Does your car use __ petrol? (lead-free)
7
"how-to" videos show you how to __ your old electronics to make useful household items.
8
How can we reduce our __ footprint? (ecological)
9
__ energy is renewable. We never have to worry about running out of sunlight or using it all up.
10
Using renewable resources should __ greenhouse gasses.
