Nimbostratus is the type of cloud.
<h2>Not the answer: </h2><h3> I don't know, maybe ask someone else.</h3>
A subordinate idea in the sentence is the part of the sentence that does not convey a complete idea or thought and needs the main sentence to complete its message. The subordinate idea in the given sentence above is "After we found the classroom". This is introduced by the subordinating conjunction "after".
Answer:
France ceded nearly all its North American possessions to the United Kingdom in 1763 after the French defeat in the Seven Years' War. ... In 1867, the Province of Canada was joined with two other British colonies of New Brunswick and Nova Scotia through Confederation, forming a self-governing entity named Canada.