Please capitalize where necessary: this world has become so hard to satisfy.
A: This world has become so hard to satisfy.

Please capitalize where necessary: the offers are also provided only on the official website.
A: The offers are also provided only on the official website.

Please capitalize where necessary: the foldings of the massif result in different types of soil.
A: The foldings of the massif result in different types of soil.

Please capitalize where necessary: "psychological body-image research consistently demonstrates that healthy skin is the number one trait that people identify with beauty. at both personal and social levels, healthy skin plays a crucial role in the healthy psychological life of individuals.
A:
"Psychological body-image research consistently demonstrates that healthy skin is the number one trait that people identify with beauty. At both personal and social levels, healthy skin plays a crucial role in the healthy psychological life of individuals.