Railroads not only led to an increase in the ability to transport raw materials, but they also led to a(n) decrease in the need for raw materials. increase in the demand for raw materials. decrease in the uses of raw materials. increase in the types of raw materials found in the united states.

Correct answer choice is :

B)  Increase in the demand for raw materials.

Explanation:

Rail transportation is a resource of carrying travelers and goods on wheeled vehicles moving on rails, also identified as tracks. It is also usually related to as train transport. Costs of goods also reduced because of railroads. The population grew because the food was available in a large variation at a low cost. The whole Industrial Revolution was changed because of these achievements. Factories prospered because the need for railroad parts and railroad tracks was very essential.

I'm not sure if this is right but I think it is.

ERATOSTHENES:

-He estimated

the circumference

of Earth.

-He observed that

Earth is round.

ARCHIMEDES:

-He created a lever and

pulley system to carry

heavy objects.

-He figured out how

to determine the

volume of any

object using water.

HIPPOCRATES:

-He tried to find the

causes of illnesses.

-He created ethical

standards for

doctors to follow.