A is the correct answer.
Hope this helps!
Answer:
"<em>Methane is a greenhouse gas, so its release would likely increase global warming."</em>
Explanation:
Methane is a greenhouse gas, so its release would likely increase global warming.
This is the only one that is both "true," and that applies to climate scientists.
Methane is toxic to marine organisms and would damage the ecosystem if released by killing species.
We are asking about <u><em>climate scientists.</em></u>
This would lead to massive pollution of drinking water.
We do not get drinking water from the ocean (except in some desert countries).
We want to extract and use this gas as a fuel source, but it would be lost to the environment through this process.
Again, climate scientists.
Answer:
Scientist 1
Explanation:
<em>The conclusion of scientists 1 is valid.</em>
Human activities such as burning of fossil fuels, agriculture, deforestation, etc. leads to the emission of carbon in the form of carbon dioxide into the atmosphere. <em>An increase in the population of a city will only lead to an increase in these activities and hence, an increase in the amount of carbon emitted into the atmosphere.</em>
Also, volcanic activities leads to the production of volcanic gases which is a mixture of carbon dioxide, oxides of sulfur, nitrogen, etc.
<u>However, an active volcano that is several miles away from the city might not be a major source of carbon in the air above a large city. The carbon dioxide produced from such volcanic activity thins out before reaching the city.</u>
