Great Britain built the suez canal.
Answer:
The concept inadvertently challenged by Progressives' call for expert opinions was:
Elected officials' autonomy
Explanation:
Through the efforts of the Muckrakers or progressive journalist, the corruption of the established institutions and leaders were exposed. Elected officials because they were wallowing in corruption did not want their administrations probed by non-elected bodies, sought vicariously for autonomy. They wanted the checks and balances through independent judiciary to be removed. However, during the 1890s to 1920s, an era known as the Progressives Era, the progressives challenged the existing autonomy of elected officials, proposing to end the monumental corruption that was in vogue at that time.
Read the first two sentences of the second paragraph. Read it here. https://www.archives.gov/founding-docs/declaration-transcript
Answer:
The most important Muslim practices are the Five Pillars of Islam.
The Five Pillars of Islam are the five obligations that every Muslim must satisfy in order to live a good and responsible life according to Islam.
Carrying out these obligations provides the framework of a Muslim's life, and weaves their everyday activities and their beliefs into a single cloth of religious devotion.
No matter how sincerely a person may believe, Islam regards it as pointless to live life without putting that faith into action and practice.
Carrying out the Five Pillars demonstrates that the Muslim is putting their faith first, and not just trying to fit it in around their secular lives