Earth’s crust is broken into pieces that interact with each other in a variety of ways. A (4) consists of two plates that move away from each other. This forms a (5) between the two plates where (6) will rise up and form new crust. When two tectonic plates come together at a (7), mountains are formed. The third type of boundary occurs when tectonic plates slide past each other. The San Andreas Fault is an example of a (8).

What evidence could be used to convince policy makers to change a shipping lane from going through a whale breeding ground? information on the number of all whale species currently alive information on the number of all whales hit by boats in the given area information on the number of whale deaths in the world's oceans information on the number of whale offspring born every year. (a) scientists could collect and combine data on fish populations all around the world to show that their populations are declining. (b) scientists collect and combine data on fish populations all around the world to show that their populations are increasing. (c) scientists work together and use past data to show that fish populations are becoming locally extinct in some areas. (d) scientists work together and use past data to show that some fish populations are adapting to environmental changes.