Which of earth's layers is comprised mainly of extremely hot liquid metals? a. crust b. mantle c. outer core d. inner core 99 !

Find lake kissimmee in the middle of the state. into what river does the lake drain?

In the following diagram, four different index fossils are labeled: which of the labeled fossils comes from the oldest organism? a b c d

The us and canadian governments are doing all of the following to combat environmental problems except a. encouraging the use of public transportation b. enacting clean water policies c. requiring emissions testing d. limiting animal populations in some regions