Is Cantonese spoken in Japan?
Cantonese is a dialect of Chinese language used in southern China. There is no relation to the Japanese language.
The answer is no.

Is Alistair Darling in favor of Scottish independence?
Alistair Darling was the chair of the Better Together Campaign. Better Together was the principal campaign for a No vote in the 2014 Scottish independence referendum, advocating Scotland continuing to be part of the United Kingdom.
The answer is no.

Is popular science used to peer review papers?
Popular science is a simplified version of scientific work. Peer review uses detailed scientific information to verify papers.
The answer is no.

Do Shivambu practitioners believe ammonia is unhealthy?
Shivambu is another term for 'Urine Therapy', an alternative belief about healing with urine. Human urine contains ammonia. Shivambu practitioners believe that ingesting urine is healthy.
The answer is no.