What type of volcano forms over a weak spot in the Earth's plate, but not along a boundary?
a. Strato volcano
b. Cinder cone volcano
C. Shield volcano
d. Hot spot volcano

The earth's oceans are made up of chlorine, and trace elements. a) carbon, oxygen b) oxygen, silicon c) hydrogen, oxygen d) nitrogen, oxygen

An organism's reproductive strategy includes all of the following except a. the number of offspring produced. b. the amount of energy expended in producing offspring. c. the length of time parental care is given d. the number of alleles an organism passes on.

Which of the following describes what an activator an enhancer are