One technique artists may use to create the illusion of a three-dimensional space in a two-dimensional work of art is the "trompe l´oeil" which means "fool the eye". Another is the Op Art, in which the artist creates optical illusions resembling three dimensions. Traditionally, lights and shadows were used to create the three dimensional form. Others use mixed techniques such as adding a photograph or other objects to the work.
<span>President Theodore Roosevelt was very interested in the conservation movement that had evolved during the late 1800s. So</span> Theodore Roosevelt has exapnded the national park system and supported the government policies that managed natural resources. I hope that this helps.
Answer:
C. San Ildefonso
Explanation:
The Third Treaty of San Ildefonso was a secret agreement signed on 1 October 1800 between the Spanish Empire and the French Republic by which Spain agreed in principle to exchange its North American colony of Louisiana for territories in Tuscany.
