I always try to save energy at school every day. First, I usually turn off the lights and fans before leaving the classroom. I also use natural light from the windows instead of turning on lamps when it is sunny. These actions are very important because they help reduce electricity waste and protect our environment. Small habits can make our school greener and more sustainable.

1 Students should use online resources for learning.

2 Although she didn't speak English well, she traveled alone to the UK.

1 The students are doing a science experiment in the lab now.

2 Space travel will become affordable for everyone in the future.

3You shouldn't stay up late to watch TV programmes.

Đại Việt

Đá mẹ khí hậu sinh vật thời gian địa hình

B

Chất thải sinh hoạt công nghiệp hoạt động khai thác sử dụng phân bón thuốc trừ sâu