Which of the following examples shows the influence coal has had on human activity? A. Coal use in steam engines caused a decrease in railroad profits.

B. Coal use in steam engines led to the discovery of natural gas wells.

C. Coal use in steam engines led to easier access to goods.

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

Whether or not a given study has the possibility of causing harm to participants:

Some european explorers sailed west looking for the passage to india

Abadger lives in oak grove forest. it is a female and it is four years old. which of the following animals could be considered a member of this badger's population? a. a two-year old male red fox living in oak grove forest b. a ten-year-old female skunk living in pine warden forest c. a four-year-old female badger living in a zoo d. a ten-year-old male badger living in oak grove forest