Genetic diversity

Variation in the genetic composition of individuals within or among species; the heritable genetic variation within and among populations. [Source: World Resources Institute]

Green Revolution

An organised effort — sponsored by the United Nations Food and Agricultural Organisation — to increase world food production by introducing high-yielding cereal varieties, first developed in Mexico and the Philippines. The Green Revolution, which began in the 1960s, led to impressive yields of grain on limited land using large quantities of fertilizer, pesticides, and water.

An organised effort — sponsored by the United Nations Food and Agricultural Organisation — to increase world food production by introducing high-yielding cereal varieties, first developed in Mexico and the Philippines. The Green Revolution, which began in the 1960s, led to impressive yields of grain on limited land using large quantities of fertilizer, pesticides, and water.
The environment within which a species lives — including characteristics of the soil, water and nutrients as well as its biological components — which allows the species' continued existence.