Most of the corn grown in Indiana is used to feed pigs, cows and chickens. Livestock, poultry and dairy farmers are cornâs biggest customers â using almost six million bushels every year or almost half of the U.S. corn crop. Family farmers grow 90% of Americaâs corn. Farmers today grow five times more corn than they did in the 1930s and on 20% less land. There are over 3,500 uses for corn. Seventy-five percent of all grocery items contain corn in some form. Per capita corn consumption in the U.S. is approximately 160 pounds. U.S. farmers account for around 40% of the worldâs corn production.
Deep inside Earth, near its center, lies Earth's core which is mostly made up of nickel and iron. Above the core is Earth's mantle, which is made up of rock containing silicon, iron, magnesium, aluminum, oxygen and other minerals.The rocky surface layer of Earth, called the crust, is made up of mostly oxygen, silicon, aluminum, iron, calcium, sodium, potassium and magnesium.he rocky surface layer of Earth, called the crust, is made up of mostly oxygen, silicon, aluminum, iron, calcium, sodium, potassium and magnesium.
Core of the Earth Facts. The core is made of two layers â the inner and outer core. When the Earth formed 4.5 billion years ago, the heavy substances sunk to the middle and these formed the inner core. The lighter ones are like air and water stayed on the top on the crust.he core is made of two layers â the inner and outer core. When the Earth formed 4.5 billion years ago, the heavy substances sunk to the middle and these formed the inner core. The lighter ones are like air and water stayed on the top on the crust.