Why would hydras avoid reproducing asexually when condition are difficult?

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.

What is relative velocity? in which condition is relative velocity known by adding the velocity of the first body and that of the second body

How will the system respond to a temperature increase?