Ms Liu: Good morning, everyone! Who is on weather duty today?

Wang Mei: It’s me! Today is Monday, March 1. The temperature will reach 15℃ by noon and drop to 2℃ at night. Overall, it will be a warm, cloudy day.

Ms Liu: Well done, Wang Mei. The days are getting longer, and spring is coming. We have a school project on March 12. Can you guess what it is?

Li Ming: Is it tree planting?

Ms Liu: Good guess. Do you know how to plant trees?

Li Ming: Yes. I learned to plant trees when I visited my uncle last spring. It was so much fun.

Ms Liu: Could you tell us the steps for planting trees?

Li Ming: Sure. First, dig a large hole. Then, place the seedling inside the hole, and cover its roots with soil. Finally, press down on the soil. Oh, don’t forget to water the seedling. 

Ms Liu: Excellent, Li Ming. Why do people plant trees? Do you have any ideas?

Song Hua: Trees help protect the soil from rainfall.

Li Lin: Trees prevent dust from spreading.

Ms Liu: Good points. I believe you will have a great time with this project.