Lol help me please!!

Rivers of drainage system. option- 1 sao francisco 2 amazon 3 subarnarekha 4 uruguay

Which type of seismic waves are confined at the surface

Which ecosystem best fits the characteristics listed below? which ecosystem best fits the characteristics listed below? ii. seasonal migrations of millions of wildebeests, zebras, and elephants iii. large numbers of predators, such as lions iv. acacia trees and grasses a. the congo rainforest b. the african mangroves c. the serengeti grasslands d. the sahel