Which sustainable practice is paired correctly with its impact on the environment? using bamboo results in an increased use of forest trees. practicing contour plowing results in a need for more land. setting irrigation systems to run longer results in a reduction of water use. creating more wind farms results in a reduction of fossil fuel use.

The sustainable development refers to the use of the resources in such a way to meet the present and the future demands effectively.  

The windmills are used for the generation of the energy, which can be used for the electricity production. Generally the electricity is produced by burning the fossil fuels. Increase in the wing farms would result in reduction of use of fossil fuels for the generation of the electricity.  

Hence, the correct answer is creating more wind farms results in a reduction of fossil fuel use.

Reasons for the incorrect options:

Using bamboo results in an increased use of forest trees, is not an example of sustainable development, as it leads to deforestation of the bamboo forests.

Practicing contour plowing results in a need for more land, contour farming reduces the use of land masses.  

Setting irrigation systems to run longer results in a reduction of water use. In case, the irrigation system would run for longer duration, the water flow would be more resulting in the increase use of water for irrigation purpose.  

D. CREATING MORE WIND FARMS RESULTS IN A REPRODUCTION OF FOSSIL FUELS USE