Why are rainforest important to the world?

17. the soil erosion pictured here is the result of what? a. harvesting renewable resources at a rate greater than the sustainable yield b. a mudslide caused by excessive rains c. harvesting renewable resources at a rate lower than the sustainable yield d. the transition between geologic eras and eons

Choose the correct chronological or of the time periods

According to the population pyramid, in 2000 china had about 120 million people in which age-group?