This person helps in catching criminals.

This person plans and designs buildings.

This person repairs the pipes and fittings of water supply, sanitation, or heating systems

This person delivers letters to our house.

This person is a rescuer who supervises the safety and rescue of swimmers.

A person who studies human evolution, culture, societies, biological and material remains.

This person takes care of the animals in the zoo.

This person conducts scientific research to advance knowledge.

This person was trained to travel in space.