Other name: Malignant Mesothelioma. Mesothelioma is a form of cancer that is almost always caused by exposure to asbestos. In this disease, malignant cells develop in the mesothelium, a protective lining that covers most of the bodyâs internal organs. Its most common site is the pleura (outer lining of the lungs and internal chest wall), but it may also occur in the peritoneum (the lining of the abdominal cavity), the heart, the pericardium (a sac that surrounds the heart) or tunica vaginalis.
Above all the rainforests sits the Amazon Rainforest, which is the largest in the world at nearly 1.5 billion acres. This forest spans nine different countries and is home to tens of thousands of plant species, thousands of animal species, and over 2.5 million insect species.he Congo river of Africa is the second largest river in the world, and is surrounded by the world's second largest rainforest-the Congo Rainforest.
What is a Temperate Rain forest There are two types of rainforest biomes temperate and tropical rainforests. Temperate rainforests are found along coasts in temperate regions. The largest temperate rainforests are on the pacific coast in North America, stretching from Alaska to Oregon.