The Montreal Protocol:a
has not yet resulted in measurable decreases in the quantity of global warming chemicals.
b. has not yet been ratified by the U.S. Senate.
c. banned global use of CFCs by 1998.
d. was signed by all 50 states.
e. limited production of CFCs.
e
You might also like to view...
Small circular, extrachromosomal DNA segments are known as _______.
A. vectors B. plasmids C. clones D. RNA
Characteristics of genetically engineered plants and plant products include
(a) better nutrition. (b) longer storage lives. (c) resistance to disease and insects. (d) all of the above.
Frameshift mutations may involve
a. substitution of nucleotides. b. substitution of codons. c. substitution of amino acids. d. addition or deletion of one or more base pairs. e. none of these.
The Irish potato famine in the 1840s was caused in large part by a proliferation of a(n)
A. chlorophyte. B. paramecia. C. oomycote. D. dinoflagellate. E. fungus.