Question

The following passages have not been edited. There is one error in each line. Write the incorrect word and the correction in your answer sheet as given in the example. Remember to underline the word that you have supplied.

Coral reefs is diverse underwater
ecosystems hold together by calcium
carbonate structures. They were
secreted by corals. Colonies of animals built
coral reefs. These animals is found in marine water.
An individual coral is knew as a polyp.
It are a very small and simple organism.
Coral reefs looks beautiful
and is admired.​

Answer 1

Explanation:

i think there should be a "are" between animals and built.

Answer 2

Answer:

Coral reefs are diverse underwater ecosystems held together by calcium carbonate. They are secreted by corals. Colonies of animals built coral reefs. These animals are found in marine water. An individual coral is known as a polyp. It is a very small and simple organism. Coral reefs look beautiful and are admired.....