This assignment is for nutrition class. Please answer the questions down by using the below txt book:Nutrition Concepts and Controversiesby Sizer and Whitney, 13th Edition.Wadsworth Publishing Co. ISBN: 978-1-133-60318-4The questions:1. Outline the scope and causes of food insecurity in the United States and in the world, and name some U.S. programs aimed at reducing food insecurity.2. Describe the severity of poverty and starvation among the world’s poorest peoples.3. Compare and contrast characteristics of acute severe malnutrition with those of chronic malnutrition in children, and describe some basic medical nutrition therapy tools used to restore health.4. Explain how the food supply and environmental conditions are connected, and explain why people in poverty are inclined to have larger families despite food scarcity.