Question

Which of the following examples shows the influence coal has had on human activity?(1 point) Responses Coal use in steam engines caused a decrease in railroad profits. Coal use in steam engines caused a decrease in railroad profits. Coal use in steam engines allowed people to travel on planes. Coal use in steam engines allowed people to travel on planes. Coal use in steam engines led to the discovery of natural gas wells. Coal use in steam engines led to the discovery of natural gas wells. Coal use in steam engines led to easier access to goods.

Answer 1

Coal use in steam engines allowed people to travel on planes.