Using your understanding of how infectious diseases can be transmitted, explain why schools can have a large number of students absent due to illness at the same time.

Which of the following does not describe a physical property of iron? a iron is silvery-white or gray in color. b iron has a boiling point of about 3,000°c. c iron is a magnetic element . d iron and sulfur react to form iron sulfide.

What best describes the structure of the declaration of independence?

Explain how scientists use geologic time to determine the age of landforms.