Cardiac arrest is a sudden stop in effective blood flow due to the failure of the heart to contract effectively. Symptoms include loss of consciousness and abnormal or absent breathing. Some people may have chest pain, shortness of breath, or nausea before this occurs.
Hayman Great Barrier Reef. Australasiaâs most exclusive private island resort â the five-star Hayman Great Barrier Reef, situated just offshore from Queensland, Australia â is poised to reopen next month following temporary closure for property restoration.
Australia is in the southern hemisphere. The Great Barrier Reef in Australia is an immense and very unique coral reef. The continent of Australia, in the southern hemisphere, is about as big as the entire United States. One of Earth's wonders-the Great Barrier Reef-is located off the northeastern side of Australia.he Great Barrier Reef in Australia is an immense and very unique coral reef. The continent of Australia, in the southern hemisphere, is about as big as the entire United States.