plates
-
غير مصنف
How many tectonic plates does Earth have?
Billions of years ago, Earth’s surface was a sea of molten rock. As this simmering magma gradually cooled, it formed…
أكمل القراءة »
Billions of years ago, Earth’s surface was a sea of molten rock. As this simmering magma gradually cooled, it formed…
أكمل القراءة »