Explanation:
waterfalls are temporary features of rivers because stream erosion is greatest at waterfalls and rapids. The water that falls at the base of the waterfall erodes rock there, leaving the rock at the tops of the waterfalls to overhang. Overall, undermining causes waterfalls to recede farther upstream.
A rainforest has more biodiversity than a temperate forest because of seasonality and location. ... The freezing temperature decreases the temperate forests biodiversity because fewer plants and animals can live in sub-freezing temperatures.
Materials that make up the crust are less dense and rose to the top.
Islam first originated in Mecca in the 7th century.
Answer: South America Independence