This is science 7. Magma that hardens in a volcano's pipe forms a
A. Volcanic neck
B. Sill
C. Volcanic crater
D. Hot spot

If a solution is considered basic, then a) the hydroxide ion and hydronium ion concentrations are equal. b) the hydroxide ion concentration is less than the hydronium ion concentration. c) the hydronium ion concentration is greater than the hydroxide ion concentration. d) the hydroxide ion concentration is greater than the hydronium ion concentration.

Identify and describe the three ways that mutations affect organisms.

The three types is stress that act on earths rocks are compression, tension, and