Explain the meaning of and reasons for the classification of beaches as heterotrophic ecosystems. （word limit 150）

South wales composes a lot of coal in that region.

Historians are researchers of the past or people who understand the history of people. with this field, they must possess qualities such as being unbiased, patient, efficient reader, has a knack for logic and critical thinking and reasoning, disciplined, open-minded, resourceful, with good analytical ability, good reasoning skills and problem solving!

Jolliet and la delle