20. What factors can limit the
usefulness of television
news as a source of
information on
environmental issues?
a. News reports are brief.
b. News reports may leave
out information
c. The information comes
from only one source.
d. all of the above
ales

All of the above.

Explanation:

If the news reports are brief, they probably will leave out information. If the info comes from only one source, it may or may not be reliable.

it's     c       this is a cell (b) with a nucleus (c) containing dna (a). the dna is organized into chromosomes (d). a section of the chromosome that codes for a trait is called a gene (e).