Answer:
It could carry more weight
Explanation:
The horse made a much better work animal than the dog because it could carry more weight than a dog. just by the fact it's so much bigger, so much stronger. It's strength was definitely the major reason why it was preferred to the dog, but the horse also adapts easily to its environment. Even if a horse eats more than a dog, because of its size, the benefits of using it for work are much bigger.
It's also much more calm and docile than most dogs, although some dog races are quite good at training and being used as assistance animal for the handicapped or blind people.
I don't have the proper answer and you might have to do research but America did gain much from the war such as Cuba, The Philipines, and Guam.
Explanation:
In the first half of the 20th century women had the advantage. They gained more expectancy than men had. While in the later part of the century men are making better gains than women and this has narrowed down the gap that was once large. In the pattern has been clear in the first half women had more and in the second half the gap in reducing.