What can you conclude about the countries of europe by looking at this map?
a) most european rivers being in the alps.
b) the rhine is the longest river in europe.
c) all european rivers cross through many countries.
eliminate
d) some european rivers act as international borders.

The diagram shows the positions of the sun, moon and earth during spring tides, when the high tides are at their highest and low tides at their lowest. what is it about these positions that causes these high and low tides?

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

What did the pattern of earthquakes in the wadati-benioff seafloor zones show scientists? a.) earthquakes occur where the ocean floor reaches its highest temperatures. b.) many earthquakes take place 700 kilometers below the seafloor. c.) slabs of ocean floor return to the mantle in subduction zones. d.) ocean - trenches cause earthquakes.