What atmospheric phenomenon prompted the 1948 smog episode in donora, pennsylvania?

Select the correct answer from the drop-down menu.during the (scientific revolution, renaissance, industrial revolution), european intellectuals rejected many teachings of ancient scientists promoted by the church. to replace flawed theories, scientists began researching and conducting experiments. they used critical and reasonable thinking to draw concrete conclusions. this also led to the (scientific revolution, industrial revolution, enlightenment). it was an age that focused on using reason for understanding laws of nature and identifying humans' natural rights.

Which of the following would be the most immediate effect of sanctions on a country?

Explain the importance of carnegie, morgan, and rockefeller on the american political scene of the early 1900's.