What inventions were widely used in the north before the civil war? Please help ty!

most combatants used smooth-bore muskets which had a maximum range of about 300 feet. However, shortly before the start of the war, the invention of rifling (grooves in the musket barrel) meant bullets could spin and travel up to 900 feet.

Explanation:

parable of the tares

explanation:

d is the correct answer.

b is incorrect because it makes food by itself

c is incorrect because us humans don't know how to produce their own food using the sun like plants.

a is incorrect because consumers can depend on carnivores for eating food for consumers to eat the dead organism. same thing with omnivores.