Sikhs only cremate.
Absolutely. Just take the body to any veterinary surgery - and ask them to cremate it for you.
bury or cremate them
An urn.
Bury it or cremate it.
yes
They bury them or they cremate them.
You can't - to cremate an animal takes intense heat (up to 1800 degrees F), which is not possible to sustain at home.
To cremate bodies.
Yes
No. He was buried in a casket made of gold
Zoos cremate their dead animals.