Answer the following questions

A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process

Which organism develops breathing organism develops breathing organs from pharyngeal arches? shark, spider, sea star, sea horse