The phrase "are essential elements of" is correct and usable in written English.
You can use it when discussing components or factors that are crucial to a particular subject or concept.
Example: "In the study of ecosystems, biodiversity and nutrient cycling are essential elements of maintaining ecological balance."
Alternatives: "are key components of" or "are fundamental parts of".
Responsible questioning and dissent are essential elements of our democracy.
"Detention and removal are essential elements of an effective immigration system.
Put simply, the planting of trees and woods, their conservation and management are essential elements of our common life.
In economics jargon, fiscal and banking integration are essential elements of an optimum currency area".
"Respect of human rights and fundamental freedoms are essential elements" of Cotonou, according to the EU's development commissioner.
The public trial and jury requirements contained in the Sixth Amendment's first clause are essential elements of due process.
No other vehicle on earth resembles Johnny Redd's motorcyle... Rhinestones, chrome, and gold are essential elements of the Johnny Redd aesthetic.
"Those three elements, the freedom, the happiness for the other, and the admiration are essential elements of striving relationships," Perel concludes.
The Rev. James Martin, the author of "Between Heaven and Mirth," talks about why joy, humor and laughter are essential elements of faith.
In "The Notion of a Living Constitution" (1976), Rehnquist articulated the role of the court in a democratic society, concluding that judicial restraint and deference to lawmaking majorities are essential elements of a responsible judicial system.
The response was a statement insisting that detention and removal are essential elements of an effective immigration system: "Detainees' welfare is extremely important and we are committed to treating all those in our care with dignity and respect".
