Question

1. what geologic processes could have formed the channel of mars? 4. how do models help scientists answer questions?

Explanation:

1. Geological processes like erosion, sediment - transport, and volcanic activity could have formed Martian channels. Erosion by water or wind can carve out channels, and volcanic activity can create lava channels. Sediment - transport can also play a role in shaping and maintaining these channels.
2. Models help scientists answer questions by simulating real - world scenarios. They can test hypotheses, manipulate variables, and predict outcomes without conducting expensive or time - consuming real - world experiments. For example, computer models can simulate the formation of Martian channels under different geological process assumptions.

Answer:

1. Erosion, sediment - transport, volcanic activity could have formed the channel of Mars.
2. Models help by simulating scenarios, testing hypotheses, and predicting outcomes.