Pollution is a problem associated with urban sprawl, but not with upward growth.

Daughter element the new element produced along with a decay particle in a nuclear transmutation 2. half-life the substance that decays in a nuclear transmutation 3. parent element the change of one chemical element into another by nuclear decay or radioactive bombardment 4. transmutation the time required for the decay of one-half of the atoms in a sample of radioactive material

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.

Identify some abiotic characteristics of the tundra biome.