1. Which of the following shows the benefits of separating mixtures in the community? I. To remove undesirable components such as smoke from industrial chimneys that causes air pollution. II. Quarrying site that is regulated practiced separating mixtures to produce raw materials for building or construction purposes. III. In case of seawater, it recovered sodium chloride, so that it can be used as table salt or common salt. To get pure substance, in case of purification of sugar cane juice, the objective is to get pure crystalline sugar​