Questions

Sublimation is a process when a solid changes directly into gas instead changing into liquid first. Dry ice is an example of Sublimation process because it doesn't change into liquid CO2 and directly change into gaseous CO2 when heated.

Hence, Dry ice is an example of Sublimation process. 

Echolocation is an adaptation bats use to hunt insects in flight, locate flowering plants and find warm places for hibernation.

Photography is a word derived from Greek words Photo means light and graphe means drawing.'Hence it literally means light drawing.

A sentence whose meaning is unclear is called as Ambiguous.