According to the food chain, label the following organisns appropriately

1. secondary consumer
2. primary consumer
3. producer
4. tertiary consumer.

_rabbit
_snake
_owl
_carrot

there is no

explanation:

when atoms of different types of elements join together, they make molecules called compounds. water consists of compound molecules made up of 2 hydrogen atoms and 1 oxygen atom. this is why it's called h2o. water will always have 2 times the number of hydrogen atoms as oxygen atoms.