Please capitalize where necessary: heat is produced by current flow through a contact with high electrical resistance.
A: Heat is produced by current flow through a contact with high electrical resistance.

Please capitalize where necessary: the monitoring program for groundwater can comprise both field measurements, total parameters such as nvoc/voc (non-volatile organic carbon volatile organic carbon), specific organic parameters (benzenes, phenols, nso, etc) and inorganic parameters including redox parameters such as oxygen, reduction potential, nitrate, iron, manganese, sulphate and methane.
A: The monitoring program for groundwater can comprise both field measurements, total parameters such as NVOC/VOC (non-volatile organic carbon volatile organic carbon), specific organic parameters (benzenes, phenols, NSO, etc) and inorganic parameters including redox parameters such as oxygen, reduction potential, nitrate, iron, manganese, sulphate and methane.

Please capitalize where necessary: 19.18 the heart figure, the two swords and the two cosmic arcs of fate connected to them thus show us the situation in which the unfinished human being, based on its cosmic ignorance and deficient faculty of humaneness, creates its own unhappy fate itself.
A: 19.18 The heart figure, the two swords and the two cosmic arcs of fate connected to them thus show us the situation in which the unfinished human being, based on its cosmic ignorance and deficient faculty of humaneness, creates its own unhappy fate itself.

Please capitalize where necessary: it is a residential and commercial area in the center of barcelona and is filled with shops, restaurants and bars.
A:
It is a residential and commercial area in the center of Barcelona and is filled with shops, restaurants and bars.