The correct answer is:
The children are wearing loose clothing. The children are exposed to dangerous machinery. The children are not wearing any protective gear.
These are some of the dangers these child workers were exposed to.

Answer:
In a dramatic speech to a joint session of Congress, President Harry S. Truman asks for U.S. assistance for Greece and Turkey to forestall communist domination of the two nations. Historians have often cited Truman's address, which came to be known as the Truman Doctrine, as the official declaration of the Cold War.
Explanation: umm i tried my best to explain it um hope you understand this XD
Answer: So that the Cherokee could march on with pride.
Explanation:
Chief John Ross was the leader of the Cherokee at a time when the U.S. were looking for ways to evict them from territory that white settlers wanted especially in Georgia.
After a subset of Cherokee leaders signed the Treaty of New Echota with the U.S. government against the wishes and knowledge of majority of the tribe, the U.S. sent General Winfield Scott to remove the Cherokee.
John Ross then convinced General Scott to allow the Cherokee to continue without the US army so to march on with pride.
This name was "Glasnost".
Glasnost was the name used for more transparency and openness in the government of the Soviet Union that Gorbachev was calling for. It has a meaning similar to "open to public knowledge).
The result is, Native Americans were eager to use the railroads for travel.