To carry out the purposes of this chapter, any public body may:
(1) acquire by purchase, gift, devise, bequest, or grant title to or any interests or rights in real property, including land and water, that will provide a means for the preservation or provision of significant open-space land or the preservation of native plants or animals, biotic communities, or geological or geographical formations of scientific, aesthetic, or educational interest, or both;
(2) designate any real property, including land and water, in which it has an interest to be retained and used for the preservation and provision of significant open-space land or the preservation of native plants or animals, biotic communities, or geological or geographical formations of scientific, aesthetic, or educational interests, or both.