Which sentence contains a capitalization error? The Empire State Building, located in New York City, received its own zip code in 1980.
Ray attended Boulder Canyon middle school in Breckenridge, Colorado.
The weather was beautiful, so Trina packed a picnic lunch to eat in Valley Forge Park.
Adam’s favorite restaurant is called Pita Palace, and it is on Oakland Avenue.

"middle school"

Explanation:

Ray attended Boulder Canyon middle school in Breckenridge, Colorado.

Middle School is not capitalized UNLESS it's talking about a specific middle school. In this case, it is.

there is a sequence and logical steps to give an answer of a trouble.

1) strategy is necessary to develop an project idea.

2) to study and know the environment where you are going to work ( ecosystem).

3)   the materials resources to built the ideas.

4) to give a priority order in the context that you study. in this case human needs.

mark twain, real name samuel langhorne clemens, was an american writer, humorist, entrepreneur, publisher, and lecturer. among his novels are the adventures of tom sawyer and its sequel, the adventures of huckleberry finn, the latter often called "the great american novel". wikipedia