Help PLEASE!

1.) What causes the cold air at the top of a mountain to sink at night?

2.) Why do you think that air pollution is often worse in cities than in rural areas?

Which chemical equation is unbalanced? which chemical equation is unbalanced

Polar zones are cold and tend to be dry because of a pressure system of cold. low high

Sally, age 3 months, has a moist, red, vesicular rash on her cheeks, the backs of her hands, and her arms. her mother said sally was constantly trying to scratch the rash and often has difficulty sleeping. her father has a family history of allergic rhinitis and asthma. discussion questions. 1. review atrophic dermatitis from chapter 3 and discuss the pathophysiology of sally’s symptoms. 2. why is the father’s medical history significant, and what can sally expect as she grows up? 3. discuss the need to limit scratching, and describe practical methods to achieve this.