The satellite that orbit earth without gravity would collide into earth since there is no gravity to hold it up there in space.
They construct dams and create an ecosystem for other species . Because of their dam building nests become available for birds, fish population increases and waterfowl population goes up
Because it helps us understand our past, which in turn allows us to understand our present.
For most turtles the incubation ranges from 45 and 75 days.