I am confused about macro lenses (or micro as Nikon calls them). Can we shoot normal (Nature) scenes using the macro lens?
Macro lenses can be used on subjects at more normal distances. They are not just for close up objects. You can shoot portraits with the 60mm or 105mm Micro for example, as those are good focal lengths for portraits.
Macro lenses are generally very sharp, but bokeh may not be as nice as a standard lens.