Please help me find out the two questions

Registered nurse
Pharmacist
Welding
Certified Home Health Aide

* a brief description of the job, and
* training or school required to obtain this job.

Registered nurse:A Registered Nurse (RN) primarily cares for patients by monitoring them, administering medications, consulting with health care providers, updating patient records and educating patients and their patients' families on disease and post-hospital treatment. Bachelor's degree

Pharmacist: Prepares medications by reviewing and interpreting physician orders and detecting therapeutic incompatibilities. Dispenses medications by compounding, packaging, and labeling pharmaceuticals. Controls medications by monitoring drug therapies; advising interventions. Doctoral or professional degree

Welding: Welders manage the machines that manufacture and repair metal structures, tools, and equipment. These skilled professionals work in a variety of industries including automotive, construction, and manufacturing. Other duties include planning layouts and measurements and testing welded surfaces. Welders may need a high school diploma or equivalent at minimum, but most attend technical school or community college programs to learn their trade, and employers prefer those with certification.

Certified Home Health Aide:Supports patients by providing housekeeping and laundry services, shopping for food and other household requirements, preparing and serving meals and snacks, and running errands. Assists patients by providing personal services, such as, bathing, dressing, and grooming.
The requirement for becoming a home health aide is a high school diploma or equivalent with on-the-job training.

The correct answer to what you are asking is probably a for a plethora of reasons