Identify the picture and explain its features

hey what is this ?is it a volcano ?or sinkhole ?or what ?just a big hole or what?

its a care under water with a very colorful rocks under the water to make very pretty pattern

the following best describes postwar era writers in their works:

many writers,authors,novelists,poets concentrated more on social art and social writing and stayed away from political writings.

judaism, christianity and islam, are all abrahamic religions and therefore have in common the hebrew idea of a single god which is the source of all morality. the idea of the covenant is only related to judaism, while dharma is a concept of indian religions and the four noble truths are basic principles of buddhism.