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.
How long and at what temperature should I cook a beef roast in the oven? Roasting is a great cooking method for a large, tender cut of beef  such as a rib or sirloin roast.Sirloin-tip, rump, rolled-rump, eye-of-round or top-round roasts will also benefit from this cooking method if they are graded prime or choice. boneless top round, by contrast, will take 28-30 minutes for rare, 30-33 for medium rare, 34-38 for medium, and 40-45 for well done. If you roast at 325Â°F (160Â°C), subtract 2 minutes or so per pound. If the roast is refrigerated just before going into the oven, add 2 or 3 minutes per pound.