Beijing Forestry University has 8 canteens, and 15,000 people eat every day. If these people use disposable chopsticks, it will cost more than 16.4 million a year, which is equivalent to destroying 3,200 trees that have grown for 50 to 60 years. So, this Teachers and students at the school have called for refusal to use disposable chopsticks, and they persisted for a full 7 years. In addition to the following, which supports the practice of teachers and students of Beijing Forestry University from different aspects? (). ['Cultivation of the concept of honor and shame should start from small things, from me, from around.', 'Forest trees have an irreplaceable role in conserving water, regulating the climate, and preventing soil erosion.', "China's forest resources are scarce, and it is a huge waste to use a tree for disposable chopsticks.", 'Forest resources are not only protected but not used. Moderate harvesting and reasonable use will promote economic development and forest area protection.']