The diagram below shows a newspaper headline.
authorities believe they know
how prisoners escaped
what is this headline an example of?
a. a hypothesis
b. an observation
ca prediction
d. a fact

When water freezes, it . contracts expands

Which of the following describes a difference when gram-positive bacteria are compared to gram-negative bacteria?

Which coal field location is related to coal fields in the eastern united states and supports the theory of continental drift? eastern india southern africa western australia northern south america