How has radiation negatively impacted the health of those who lived near the Chernobyl disaster? List at least three negative impacts from the article. 7 sentence minimum.

Why is excretion necessary to maintain homeostasis?

Which statement correctly describes other ways in which nebulae and stars are different? a. a star always has a higher density than a nebula. b. stars can form inside a nebula but a nebula can never be produced by any star. c. stars can never form inside a nebula but a nebula can be produced by any star. d. a nebula always has a higher density than a star. reset submit

The amount of time it takes for one-half of the original amount of an isotope to decay is known as its question 9 options: correlation half-life period radioactivity