Which of the following statements about sunspots is false?
a. they are areas of the sun that are "burnt out."
c. they are cooler than the surrounding areas of the sun.
b. they occur on the surface of the sun.
d. they occur in cycles.

What element does susan b. anthony include in this passage to strengthen her argument?

The human genome project is devoted to mapping the general dna sequence of our species. this could lead to the development of new medicines, as well as the possibility of using gene therapy to treat certain diseases. however, there are some ethical issues surrounding the mapping of individual genomes. one concern is a) that your genes may change over time, making the project useless. b) that insurance companies could discriminate based on genetic make-up. c) that since this has never been done before, we should probably not do it now. d) that sequencing our individual genomes is so expensive, it is a counter-productive strategy.

Why do oceanic plates tend to subduction when colliding with a continental plate