Curium is a hard, brittle, radioactive silvery metal. It does not occur in nature and must be made in a nuclear reactor by neutron capture reactions from plutonium and americium isotopes. It tarnishes slowly in dry air at room temperature.
Romaine lettuce is a rich source of fiber and has very few calories, only 8 in a one-cup serving. In terms of vitamins, a cup of Romaine lettuce delivers more than 50% of your daily requirement for vitamin A, as well as significant levels of vitamin K and vitamin C.
1 For instance, the online store Shopalacart.com sells romaine lettuce for $2 to $5 per heart. 2  On the website Myhealthstuffs.com, the prices mentioned vary depending on the location of the customer. 3  For instance, a Costco in Phoenix sold a 4 pack of romaine hearts, which are not considered full heads, at about $4.omaine lettuce is a variety of lettuce that grows in tall head of sturdy leaves rather than the small round head of lettuce such as iceberg lettuce. Romaine lettuce is preferred by many people over other lettuce types for its crispness and sweet flavor. It is commonly used in Caesar salad and in Middle eastern cuisine.