Answer:
One of the greatest mergers of all time,United airlines merged with Continental to create a monopoly at Houston international airport.
Explanation:
Sanctuaries are places where animals can spend their lives and be protected for the rest of their lives. Unlike shelters, the animals from the sanctuary are not in a search for a new home.
Sanctuaries can be a place where the animals, especially previously abused animals, can be protected from harm, such as animal testing and slaughter.
it's number d.
because Americans immunity system wasn't strong as for that of the Europeans
I hope it helps ;D
You can write who he was ?
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