Which is one factor that scientists use to classify orders of soil? A. fertility

B. climate

C. dryness

D. bedrock

What element breaks down into yttrium-90?

What happens to the atomic radius when an elctron is lost

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.