If a material has a half-life of 24 hours, how long do you have to wait until the amount of radioisotope is 1/4 its original amount?1. 48 hours2. 24 hours3. 72 hours4. 12 hours5. practically forever, but it may be safe by then

What is the consumer decision process and what is the first step?

During the progressive era, those who wanted to reform the American city Group of answer choices supported essentially the same goals as the social welfare reformers. tried to limit the power of city bosses. generally supported working-class values.

Which statement tells an advantage of multicellular organisms? A. They can form complex organ systems. B. They can reproduce quickly. C. All of the cells are the same. D. One cell performs all of the necessary functions.

Three benefits of participating in a community project

Which type of family has higher child mortality rates?

Something that stands for something else is a (n)

Which of these rulers is an example of an absolute monarch apex

Compare and contrast the climates of the mainland and the islands of Southeast Asia.

Which geographical resource does Russia lack A. literature and art B. forests C. ocean access D. natural minerals

Research found that family violence is a serious problem among working-class families. all families, regardless of race or social class. upper-class families.