The availability of cheap steel allowed larger bridges, railroads, skyscrapers, and ships.
Other important steel products were steel cable, steel rod, and sheet steel, which enabled large, high-pressure boilers and high-tensile strength steel for machinery. Military equipment also improved significantly.
Answer is men, women
Reason
You didn’t list any answer choices
But men show love in a physical way while women show love in an emotional way.
Occurs when people maintain the interests, activities, and social interaction with which they are involved during middle age.
I hope that helped, Good luck! (: