A wildebeest is running in a straight line, which we shall call the x axis, with the positive direction to
the right. The figure below shows this animal's
velocity as a function of time. (Figure 1)

Which of the following statements must be true?

A)it is moving to the left between a and b and to the right between b and c
B)it’s acceleration is increasing
C)it’s speed is decreasing from a to b and increasing from b to c
D)it is moving to the right between a and c

1. when conducting a test on what kind of music increases the growth of plants, all of the following would fail to meet to fair test standard except (1 point) using different kinds of plants. giving some plants more water than others. exposing the plants to different types of music. using nutrient-rich soil for one and lesser soil for others. 2. engineering uses scientific thinking to solve real-world problems. (1 point) true false 3. what does it mean to test a hypothesis? (1 point) pass a quiz on other scientists’ results analyze only the results from scientific sources not make assumptions about how an experiment will turn out see if the results of an experiment are what the scientist predicted