NEED HELP ASAP
Which of the following is used as evidence for sea-floor spreading?
-magma
-seismograph
-global positioning system
-fossils
-rift zones
-magnetic reversal

Which continents lie only in the northern hemisphere

Computer models can scientists predict weather. some computer models can show the predicted path of hurricanes. what other events could a computer model warn us of? a) undersea earthquakes , tornadoes, and avalanches b) tornadoes c) avalanches d) undersea earthquakes

How are the arctic and antarctic circles alike?