At top speed an amazon river dolphin can swim 6 miles in 30 minutes what is the river dolphin's speed in miles per hour

The summit of chimborazo, in ecuador, which is at a distance of about 6,384 km from the earth's center. the bottom of the mariana trench, in the western pacific ocean, which is nearly 6,370 km from the center of the earth. on the surface of earth on the equator line.

Apossible explanation for a set of facts that can be tested by further investigation is called

Do you agree with scientist’s prediction about the warming of alaska and other polar regions?