How many nucleotides make up a codon (section of mRNA)

What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.

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

Mineral rich water heated by newly found oceanic crust escapes through cracks in the ocean floor called