A Charity unless you are talking about the name of an organization then try UNICEF.
Answer:
Most systems depend on the chemicals produced by it to run smoothly
Explanation
Your endocrine system includes your thyroid, which helps produce certain aiding hormones
Answer:
biology
Explanation: But physics is good too
Answer:
If you are talking about websites, then yes. Website ending with .gov for government or .org are always reliable.
Explanation:
But if you aren't talking about websites, this question is questionable due to your experience of government issued information. But for the most part, government information are always reliable.
