This question has a very wide range of possibilities.
1. Reduce Tillage
2. Contour Farming
3. Cover Crops
4. Windbreaks
~This is what I came up with.
-hope it helps with whatever your doing!
Can you provide more context please,
Manuel I just read the book one of them
Answer:
The topic is what the selection is about, but the main idea is what point the writer is making about that topic. In literature, the main idea can also be called the theme. Being able to identify these terms when reading will increase your comprehension of the selection.