1. in some areas of the world, like california and japan, earthquakes are a common occurrence. how can this best be explained?
a) the strong ocean currents are undermining both areas causing earthquakes.
b) both areas are subjected to strong ocean wind and waves that causes earthquakes.
c) both areas are located near the edge of the pacific ocean, the unstable sand causes earthquakes.
d) both areas are on the boundary of active plate margins, the motion of the plates causes earthquakes.
2. in the diagram of the ocean basin, where is the oldest oceanic crust found?
a)
b)
c)
d)
3. when an experiment is repeated and the new results are different from the original results, what could you assume to be true? a)the results from both experiments are worthless. b)the first experiment's results are worthless and should be discarded. c)the experimental design is flawed and the experiment should be discarded. d)neither test results are 100% reliable and additional experimentation is needed.
4. which piece of lab equipment has specific markings for highly accurate measurements of liquid volumes? a)beakerb)test tubec)watch glassd)graduated cylinder
5. which question can be answered by an experiment? a)do sugar substitutes cause cancer? b)did an ice age kill off the mastodons? c)what caused the extinction of the dinosaurs? d)are all people susceptible to the hunta virus?