Coal is the answer to the question
Answer:
The 1969 Cuyahoga River fire helped spur an avalanche of water pollution control activities, resulting in the Clean Water Act, Great Lakes Water Quality Agreement, and the creation of the federal Environmental Protection Agency (EPA) and the Ohio Environmental Protection Agency (OEPA).
You can easily eliminate A because qualitative data has nothing to do with numbers or . So your answer would be B, C , and D
Answer:
The positive control is control when there is an activator present which acts as a regulatory protein so the operon and activator binds and initiates the stimulation of transcription to express the gene. In absence of this activator or regulatory protein, the operon will be inactivated.
External environmental stimuli can lead to alteration of the positive control in prokaryotes such as excess lactose in the environment. These environmental stimuli can induce transcription in prokaryotes.
In this example, if glucose is not available in the environment, the transcription of the lac operon will be induced by the presence of lactose in the environment.
Photosynthesis removes carbon from the atmosphere, and cellular respiration releases carbon back into the atmosphere.