Which two forms of heat transfer did Nicholas consider when building his fire shelter?

churchill warned that the soviet union had cut eastern europe off from the west with an "iron curtain."

give me brainliest

sorry i do not know this

the right answer is the third one: turnpikes went short distances to connect markets. turnpikes, also known as toll roads, were very important for trade and transportation (of people, goods and products) in the 19th century, coinciding with the expansion towards the west. they contributed significantly to the economic development of the united states.

the correct answer is 50.