Question

In the passage, vaccine is given to cows to reduce the production of methane. Do you think this process of testing on animals is justified? Why?​

Answer 1

Answer:

They have been given a vaccine against certain gut microbes that are responsible for producing methane as the animals digest their food. Methane is one of the most egregious of greenhouse gases, roughly 25 times more potent at trapping heat than carbon dioxide.