
Verbos Modales
Quiz by MARIANA ALLIONE
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Wastewater is used water that must be treated before it is released into another body of water, so that it does not pollute water sources.
¿Cómo leerías el verbo modal con el verbo pleno?
Biosolids are the major by-product of the wastewater treatment process. They can be used for a number of purposes when treated and managed appropriately.
¿Cómo leerías la segunda oración?
Primary wastewater treatment involves sedimentation.With gravity, heavier solids sink to the bottom while lighter solids rise to the top. Chemicals can be added as coagulants to remove more solids.
El equivalente es...
Sedimentation creates sewage sludge as a by-product at the bottom of the tank. The sludge may find use in anaerobic digestion.
In the primary treatment process, solids are reduced to a large extent. Without this step, subsequent treatment would be less effective.
¿Cómo leerías el verbo modal con el verbo pleno?
In tertiary treatment, harmful microbiological matter is inactive so that it_________
¿Cuál es la mejor opción para completar la oración?(Ayuda: indica futuro)
All sewage lift stations, whether of the wet-well or dry-well type, should include at least two pumps. One pump can operate while the other is removed for repair.
¿Qué indican los verbos modales de estas oraciones?