12. Scientists recently discovered the fossils of ancient whales at altitudes of more
than 1524 meters in a remote plateau of
the Andes Mountains in southern Chile.
Which of the following is the most likely
explanation for the presence of these
fossils 1.5 kilometers (almost a mile)
above sea level?
(1) Wild animals dragged the dead
whales up to the remote plateau.
(2) After the whales died, their bones
floated up to the plateau.
(3) After the whales died, their bones
settled in the ocean sediments that
were then uplifted as the mountains
rose.
(4) At the altitude of 1524 meters,
conditions were just right to preserve
the bones of the whales that died
there.
(5) Whale bones are so huge that they
can only be preserved high up in the
mountains.

Astudent made a graph plotting the progress of a reaction over time. the student forgot to label the y-axis of the graph. a graph is shown with two graph lines. one graph line starts at a higher position on the y axis and slopes downwards towards the right. the other graph line starts at a lower position on the y axis and slopes upwards towards the right. the two graph lines stop short of intersecting each other and continue as separate lines which gradually become straight and parallel to the x axis. a vertical line is shown at a point where the two graph lines finally became parallel to the x axis. this vertical line is labeled equilibrium. the title on the x axis is time and an arrow pointing towards the right is shown above time. the title on the y axis is left blank. what best explains the label that the student should use on the y-axis? amount, because as the amount of product decreases, the amount of reactant increases over time. reaction rate, because forward and backward reaction become equal at equilibrium. amount, because the amounts of reactants and products become constant after equilibrium is reached. reaction rate, as the rate of forward reaction increases and rate of backward reaction decreases over time.

What statement goes against the kinetic theory of gases

What is the name of the enzyme that forms at the start of transcription?