The Trapper. The trapper was often the youngest member of the family working underground. Their job was simple: to open and close the wooden doors (trap doors) that allowed fresh air to flow through the mine. They would usually sit in total darkness for up to twelve hours at a time, waiting to let the coal tub through the door.
Conventional vs. organic farming. The word organic refers to the way farmers grow and process agricultural products, such as fruits, vegetables, grains, dairy products and meat. Organic farming practices are designed to encourage soil and water conservation and reduce pollution.
The feature that distinguishes an organic from inorganic molecule is that organic molecules contain carbon-hydrogen bonds, whereas inorganic molecules do not. The four major classes of organic molecules include carbohydrates, proteins, lipids and nucleic acids .â.