List 10 examples of substances that are beneficial in small quantities but poisonous in large doses

Following Ten compounds are benificial in small quantity but poisonous at higher concentration.

                         1) Iron

                         2) Oxygen

                         3) Vitamin A

                         4) Vitamin D

                         5) Table Salt

                         6) Ethanol 

                         7) Amygdalin (found in apple)

                         8) Solanin (found in potato)

                         9) Formaldehyde (found in pears)

                         10) Cucurbitacin E (found in Cucumber)

Firstly, the water in the dams hold gravitational potential energy as they are above ground level. the gravitational potential energy is then transferred to kinetic energy as it falls, spinning the turbinethe turbine then spins the generator, which is a large magnet surrounded by metal coils. by doing this, the generator generates electricity. in this action, the energy transfer taken place is kinetic to electric energy