PATHOLOGY

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PATHOLOGY MCQ

GENETICS AND DISEASE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In the 1970s, many biotechnologists worked to develop a biodiesel that was an alternative to petroleum diesel. The results of their research was a biodiesel fuel that can be burned by most regular diesel engines and releases up to 50% less carbon emissions than petroleum diesel.If the majority of diesel-burning vehicles in the United States begin using biodiesel, what would be the most likely environmental impact?
A
There will be no environmental impact.
B
The amount of acid rain falling on the country will increase.
C
The amount of polluted runoff flowing into the ocean will decrease.
D
Air quality across the country will improve.
Explanation: 

Detailed explanation-1: -Using biodiesel reduces life cycle emissions because carbon dioxide released from biodiesel combustion is offset by the carbon dioxide absorbed from growing soybeans or other feedstocks used to produce the fuel.

Detailed explanation-2: -Using biodiesel lowers particulate matter by 47%, reduces hydrocarbon emissions by up to 67%, and reduces smog. It’s environmental benefits don’t stop there. The production of biodiesel, in lieu of petroleum diesel, reduces wastewater by 79% and hazardous waste by 96%.

Detailed explanation-3: -Biodiesel’s physical properties are similar to those of petroleum diesel, but it is a cleaner-burning renew-able alternative. Using biodiesel in place of petroleum diesel significantly reduces lifecycle carbon emissions.

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