Rivers are the primary body of water found in tropical rainforests. Many rainforests feature one large river that feeds the entire ecosystem and many smaller rivers that drain into the major water body, such as the Amazon river and its many tributaries.
1 Cook in the oven for 30 minutes at 325 degrees F (165 degrees C). 2  Reduce the heat to 300 degrees F (150 degrees C), and cook for 1 1/2 hours. 3  Remove roast to a platter to rest for 10 to 15 minutes. Return meat to pan, place remaining bay leaf on top of meat, and cover. 2  Cook in the oven for 30 minutes at 325 degrees F (165 degrees C). 3  Reduce the heat to 300 degrees F (150 degrees C), and cook for 1 1/2 hours.
It is very simply to cook roast in oven. This is because you can use big pieces of meat is you are using an oven. The constant low temperature maintained in oven breaks down tough meat fibers, making them juicy and tender. The cooking time varies from 60 minutes to 90 minutes depending on the recipe used. How long does it take to cook a roast depends on the method of preparation adopted to prepare it.