PRINT Apply Your Knowledge
During cold winters, ice can form on small lakes and ponds. Many people enjoy skating on
the ice. Occasionally, a person skates on thin ice and breaks through it.
Use what you learned in the lesson to explain why rescue workers lie flat on the ice
instead of walking upright when reaching out to help rescue a skater.
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the leaf is an organ of a typical plant, and the main functions are to complete photosynthesis and allow the plant to exchange gas, just like how we have the respiratory system. leaves have the stomata, which collects maintains co2 and o2 levels. this is necessary for cell metabolism. the leaf also collects sunlight using chloroplasts. succinctly, leaves own a pivotal role in sustaining plant life.