At both new and full moons (lunar phases) the tides are most pronounced (for example, the highest high tides).
1. The protection granted by a nation to someone who has left their native country as a political refugee.
2. An institution offering shelter and support to people who are mentally ill
Answer:
384,400 km
Radius: 1,737
I'm pretty sure it's the Eichhornia crassipes. It is a water hyacinth, and it was overgrown in the Lake Victoria area.