Across
- 4. / failure or refusal to conform to a prevailing rule or practice.
- 5. / the rigid outer part of the earth, consisting of the crust and upper mantle.
- 6. push / sliding plate force is a proposed mechanism for plate motion in plate tectonics.
- 8. / a surface of contact between two groups of unconformable strata.
- 11. pull / motion of a tectonic plate that can be accounted for by its subduction.
- 12. core / center of the earth.
- 13. / strength or energy as an attribute of physical action or movement.
Down
- 1. / the upper layer of the earth's mantle, below the lithosphere.
- 2. / a break in a sedimentary sequence that does not involve a difference of inclination between the strata on each side of the break.
- 3. core / layer of the earth that is made out of iron and nickel.
- 4. force / sum of all forces acting on an object
- 7. / a property of matter by which it continues in its existing state of rest or uniform motion in a straight line.
- 8. force / two individual forces are of equal magnitude and opposite direction.
- 9. crust / the relatively thin part of the earth's crust that underlies the ocean basins.
- 10. life / he time taken for the radioactivity of a specified isotope to fall to half its original value.