Final answer:
Many Russians from across all levels of society lost faith in Czar Nicholas II at the beginning of World War I due to difficulties in the war, food shortages, and previous events that had already weakened trust in the Tsar.
Step-by-step explanation:
At the beginning of World War I, many Russians from across all levels of society lost faith in Czar Nicholas II due to several factors. One major factor was the difficulty Russia faced in achieving victories in the war. The Russian army suffered enormous casualties, and there were food shortages, riots, and shortages of weapons and munitions. Additionally, the defeat in the Russo-Japanese War and the events of the 1905 Revolution had already weakened trust in the Tsar. These circumstances led to a loss of faith in Nicholas II's ability to lead and protect the Russian people.