Different Levels of Questioning

For our Reading Inquiry we are learning to develop the way ask questions. We are using Google Jamboard to post questions as a group. We then classify them into Level 1, 2 or 3 questions. Sometimes we think of easy questions which are easy to answer and don't require us to think deeply. If we want to challenge each other we have to try and ask questions that get each other to think deeply and use what they already know.

Erosion of drains next to our school.

We have been looking at the erosion of the drain walls next to our school. We noticed that the drain right next to the school had little erosion yet lots of agapanthuses plants. The drain over the road looked a lot worse and even some of the fence posts were just hanging. Not much vegetation was on that side apart from Leaderbrand lettuces a long way inside the fence. Could this be the problem??