Reena segregates the waste at home and put the bio degradable waste in a pot containing soil. She leaves it for 15 days and uses that soil for her plants in the garden. Why do you think she did so?

Reena is making compost to reuse or recycle biodegradable waste and convert it into a natural fertilizer.

Explanation:

By placing the biodegradable matter in the pot with soil, microorganisms living in that soil are able to decompose the wastes and produce fertile products. This fertilized soil is very useful in plant care because it provides many nutrients and benefits for needed the plants' growth.

Compost consists of a controlled oxidation biological process and microorganisms and other invertebrates such as earthworms are in charge of decomposition of the solid matter. The product is used as a natural fertilizer and is a good substitute for chemical fertilizers. When composting, temperature, and humidity must be controlled. The process lasts one week or two until the whole solid wastes are degraded and mixed with the rest of the soil.    

mientras se trata la anorexia o la bulimia, es importante buscar ayuda antes que nada. un profesional de la salud mental será el más útil para aquellos que sufren anorexia o bulimia. este es un buen lugar para comenzar, sin embargo, ver a otros profesionales como dietistas registrados, especialistas médicos y dentistas podría ayudar a alguien a recuperarse de un trastorno alimentario. después de la ayuda profesional, o si la ayuda profesional no es una opción, alguien que se recupere de la anorexia o la bulimia debe rodearse de compañeros de apoyo, padres u otros miembros de la familia que también estén comprometidos con el proceso de recuperación.

hope this you! : )

(i popped my answer into google translate so it may be a bit wonky)

just finished the test, the answer is d, greg is the least cost-effective because he charges the most for the project