Maryland and northwest territory were connected through the a.) national railroad b.) national skyway c.)national canal d.) national road

The right answer is the D: National Road.

The National Road was the first highway in the United States funded with the support of the federal government. It was constructed between 1811 and 1834 with the goal of connecting the East with the Ohio River, making possible the transportation to the West of thousands of settlers. It started to be built in 1811 in Cumberland, Maryland, hence the name Cumberland Road that is also used in order to refer to it. It soon became a very popular and traveled road, although in the last decades of the 19th century it was partially replaced with the railroad.  

This road is known today in many places as Route 40.

whose power in the senate is equal to the power of the speaker of the house?

in 1862, president lincoln's emancipation proclamation opened the door for african americans to enlist in the union army. although many had wanted to join the war effort earlier, they were prohibited from enlisting by a federal law dating back to 1792.

explanation: