Secondary Sources. A âSecondary Sourceâ can be defined two ways: it is anything about a historical event which was created using primary sources, and / or which was one or more stages removed from the time period and the event. A âsecond handâ item.
I'm here to share what I know about my favorite topics: animals, dinosaurs, history, biology, sustainability, and the rest of science. In a temperate rainforest, the average rainfall is at least 54 inches per year. The temperature is generally about 39 F (5 C) to 54 F (12 C).
Tropical rainforests can be characterized in two words: hot and wet. Mean monthly temperatures exceed 18 Â°C (64 Â°F) during all months of the year. Average annual rainfall is no less than 1,680 mm (66 in) and can exceed 10 m (390 in) although it typically lies between 1,750 mm (69 in) and 3,000 mm (120 in).