Compressed Natural Gas (CNG) is considered a better fuel than coal/ petroleum, because _______.

The tiger and the lion are carnivores. Likewise, the elephant and the bison are_____________.

Assertion (A): Coal and petroleum are called fossil fuels.

Reason (R): Fossil fuels are formed from the remains of dead organisms after millions of years.

Now-a-days water bottles and lunch boxes are made from agricultural products like fruit pulp. These are called ______ .

Which of the following groups contain only bio-degradable items?