Is it true that the lungs are composed of hundreds of tiny air sacs called alveoli

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At age 16, juana has an appropriate weight and eats whatever she wants whats the best stratwgy juana can use to ensure good health? a) walk once a day and start paying attention to her diet to prevent weight gain b)engage in regular. physical activity and get in the habit of eating food that is high in nutrients c) take up an aerobic sport like soccor and reduce her calorie intake to 1800 per day

In some states the highway patrol use plane carrying radar device5s to monitor traffic as the plane flies over traffic the radar device can tell the officers how fast each car is moving at the moment in time the radar device determines the cars