Which characteristic is a physical property of wood? a. wood can burn. b. wood can rot. c. wood does not rust. d. wood is softer than coal.

Which compound contain an iron with a 3+ charge

Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)

Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas