Final answer:
Canoeing upstream near the shore takes advantage of slower currents for easier paddling, while downstream paddling is best done in the faster center current. Avoiding unnecessary risks in water sports like surfing near others or navigating waters with Asian carp is essential for safety.
Step-by-step explanation:
When paddling a canoe upstream, it is recommended to travel as near to the shore as possible to take advantage of the slower current found near the banks. The water in the center of the river flows more rapidly, making it harder to paddle against the current. Conversely, when canoeing downstream, it can be advantageous to stay near the middle of the river where the current is fastest, aiding in moving the canoe forward with less effort. This strategy helps conserve energy and reduces the risks associated with fatigue and loss of control.
Similarly, other water-related activities carry inherent risks that require careful consideration. For example, surfing close to others vastly increases the chance of collisions, leading to surfing-related injuries. Moreover, navigating rivers, where Asian carp are present, introduces the risk of being struck by jumping fish. These examples highlight why understanding the environment and avoiding unnecessary risks is crucial.