What are some interesting facts about the great sandy desert?

Which one is best adapted to live in open water in the epipelagic zone, and why? fish a because of its elongated body and powerful tail fish b because of its flattened shape and eyes on the dorsal side fish c because of its streamlined shape and lack of pectoral fins none of these because they are all sedentary

What is the famous rainforest in costa rica called?

Fertility and mortality rates are higher in more developed nations.