Question

state any three important development through which world change profoundly during 19th century

Answer 1

"Lighter wagons
"Faster railways
"Larger refrigerated ships

Answer 2

Explanation:

$<p style ="Color:cyan; font-family: cursive; background:black;font size25px;">(i) Wide ball was applied.$

$<p style ="Color:cyan; font-family: cursive; background:black;font size25px;"> (ii) Protective equipment like pads and gloves become available .$