----- Nội dung ảnh -----
**Question 1:**
A. Ball 1
B. Ball 3
C. Ball 2
D. Ball 4
**Question 2:**
A. Yói
B. Egg, adult mosquito, newborn mosquito, baby mosquito
C. Adult mosquito, egg, pupa, baby mosquito
D. Yói, adult mosquito, egg, pupa, baby mosquito
**Question 3:**
A. Consume food and give off oxygen
B. An increase in snakes
C. Produce food and give off carbon dioxide
D. Produce food and give off oxygen
**Question 4:**
A. A decrease in rabbits
B. An increase in insects
C. A decrease in moles
D. A decrease in moles
**Question 5:**
A. An and Minh boiled some water in a beaker. Then they turned off the heat source and added five ice cubes to the water. Which is the most possible temperature of the water after about ten minutes?
**(Hình vẽ mô tả chuỗi thức ăn với các động vật như sóc, cáo, rắn, chim, diệc, và thực vật.)**
