What part of the process of plate tectonics do the water currents represent? What part of the process of plate tectonics do the pieces of paper represent? What was the driving force that caused the pieces of paper to move along the water’s surface?

Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?

Which equation is used to calculate the magnetic force on a charge moving in a magnetic field

Asolution of an enzyme and a substrate was placed in a water bath and the temperature of the reaction was raised gradually. the graph shown was plotted at the end of the experiment. what can be concluded from the graph? a) temperature has no effect on the activity of the enzyme. b) the effect of temperature on the enzyme is unpredictable. c) the enzyme shows increased activity up to a certain temperature. d) the activity of the enzyme is inversely proportional to the temperature.