Add spaces: ThemostfamouslavishproducerintheworldismostcertainlyCoachMadisonOpArtPushlockBagBeige.Fromthedayitwascreated,CoachMadisonOpArtPushlockBagBeigebecameoneofthemostimportantproductsincontemporaryfashion.

Answer: The most famous lavish producer in the world is most certainly Coach Madison Op Art Pushlock Bag Beige. From the day it was created, Coach Madison Op Art Pushlock Bag Beige became one of the most important products in contemporary fashion.

Add spaces: ...thattheactionofthemoonandsunuponthetidesmusthaveatendencytoretardtheearth'srotationonitsaxis.

Answer: ... that the action of the moon and sun upon the tides must have a tendency to retard the earth's rotation on its axis.

Add spaces: Modernscientificresearchhasnowshownthatsomeofthesehealthbenefitsmaybetrue,oratleastplausible.

Answer:
Modern scientific research has now shown that some of these health benefits may be true, or at least plausible.