Repeated blood sampling.
IV administration of fluid.
IV administration of medications.
IV administration of chemotherapeutic agents.
IV nutritional support.
IV administration of blood or blood products.
There is no known way to prevent Anorexia nervosa, so it CANNOT be prevented, but it CAN be treated by psychological therapy and weight gain, so that statement in your question is FALSE.
That's your answer! ^^
1. Air pollution can cause health problem directly to any organism include human, animals, and plants. The pollutant can increase the risk of infection, asthma or COPD in human.
2. If air pollutants are too much, they can be blocking the sun making the plant is harder to get sunlight and can't do photosynthesis. It will make the level of oxygen decreased and amount of carbon dioxide increase.
3. Air pollutant also be able to cause climate changes and make global warming which will cause the temperature of earth increase, melting the ice and increasing the water level.
I would advise her not to lose any weight at all as according to the skin fold test which measures her body mass index she has 22 percent body fat which is in the normal/healthy weight range. Any BMI between 18.5 to 24.9 is considered healthy. If she really wanted to she could lose the 7 pounds as long as she stays within the healthy BMI levels and doesn't drop any lower than 18.5 but she really doesn't need to.