The previous answer from tutor doesn't really clear as too much theoretical approach rather than based on the article.

Visit https://daff.ent.sirsidynix.net.au/client/en_AU/search/asset/1031121/0 and read pages 26 to 34 about wheat and coarse grains. Then answer the questions that follow.

1. Draw a diagram to show the wheat market change that will result in lower wheat prices. Please provide brief explanations as per the readings. Why certain movements in curve happens?

2. Which commodity or commodities could be regarded as a substitute for wheat? Why?

Make sure to explain your answer fully based on the readings.