Somebody plz helppp Year 1960 1970 1980 1990 2000
Nitrogen oxide concentration (in parts per million by volume) 285 258 234 199 117

Based on the table, which of these conclusions is most likely correct?
Geothermal energy was replaced by fossil fuels in 2000.
Fossil fuels were replaced by geothermal energy in 2000.
The least amount of fossil fuel was used between 1980 and 1990.
The greatest amount of fossil fuel was used between 1960 and 1970.

Hurry where is the majority of earth's water found? o glaciers o oceans ground o rivers and lakes

You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.

Ascientific idea becomes valid when it is what?