Writing a solid research paper requires

It depends on what grade level you are at and what your teacher requires. Did you get a rubric? Some helpful tips:
Choose an engaging topic
Search for reputable sources
Know what types of sources are required for your research paper
Write a solid thesis statement (argument)

(The purpose of a thesis statement is to state what the entire research paper will be based on. Answer these questions:What’s the subject of your research?How are you going to reach your goal?What methods will you use to prove your point?What do you expect to obtain as a result?)

Make a plan or outline for your paper

Write a rough draft before writing your final draft

Make sure you cite all of your sources correctly

The consensus opinion is that Machu Picchu was built as an estate for the great Inca Pachacuti. It is also considered a pilgrimage site that Incas would take to pay respects to the great Inca leader. The pilgrimage taken to the site is the route now called the Inca Trail.