Gr7_Sci_U04_USA_FY21 Question: 1-2
Jane believes that plate tectonics is a theory, and Mario believes it is a law. Which of the following best supports Jane's argument
Plate tectonic theory specifies how fast the plates may have moved in the past.
Plate tectonic theory gives a precise prediction of the direction of plate tectonics.
O O O
Plate tectonic theory explains why the outer layers of the Earth move and change.
Plate tectonic theory provides a means to calculate exactly where and when the plates will move

Astone is thrown with a speed v0 and returns to earth, as the drawing shows. ignore friction and air resistance, and consider the initial and final locations of the stone. which one of the following correctly describes the change δpe in the gravitational potential energy and the change δke in the kinetic energy of the stone as it moves from its initial to its final location? options a.δpe = 0 j and δke = 0 j b.δpe is positive and δke is negative c.δpe = 0 j and δke is positive d.δpe is negative and δke is positive e.δpe = 0 j and δke is negative