all or most of the people in the country have daily access to enough nutritious food to live active and healthy lives
living with chronic hunger and poor nutrition, which threatens their ability to lead healthy and productive lives
people who cannot grow or buy enough food to meet their basic energy needs suffer from this
deficiencies of protein and other key nutrients
severe shortage of food in an area and which can result in mass starvation, many deaths, economic chaos, and social disruption
occurs when food energy intake exceeds energy use and causes excess body fat
supplying water to crops by artificial means
uses heavy equipment and large amounts of financial capital, fossil fuels, water, commercial inorganic fertilizers, and pesticides to produce single crops
industrialized agriculture used primarily in tropical less-developed countries
growing plants by exposing their roots to a nutrient-rich water solution instead of soil
supplements energy from the sun with the labor of humans and draft animals to produce enough crops for a farm family's survival
farmers increase their inputs of human and draft-animal labor
grow several crops on the same plot simultaneously
involves burning and clearing small plots in tropical forests
method to increase crop yields is a process called this
concentration of particular aquatic species suitable for commercial harvesting in a given ocean area
practice of raising marine and freshwater fish in freshwater ponds or underwater cages in coastal ocean waters
movement of soil components, especially surface litter and topsoil
topsoil falls by 10% because of a combination of prolonged drought and human activities
irrigation water gradually accumulating salts in the upper soil layers
water accumulates underground and gradually raises the water table
any species that interferes with human welfare by competing with us for food, invading lawns and gardens, and destroying buildings
chemicals used to kill or control populations of organisms that we consider undesirable
using a variety of methods to reduce topsoil erosion and to restore soil fertility
method of restoring nutrients using plant and animal materials
produced from various minerals, which are mined from the earth's crust
the dung and urine of cattle, horses, and poultry
freshly cut or growing green vegetation that is plowed into the topsoil to increase the organic matter and humus available to the next crop
microorganisms in topsoil break down organic matter such as leaves, crop residues, food wastes, paper and wood, in the prescence of oxygen
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