In an average year the climate in a tropical rain forest is very humid because of all the rainfall. A tropical rainforest gets about 150 cm of rain per year. It gets lots of rain because it is very hot and wet in rain forests. The hotter the air, the more water vapor it can hold.
Across America, the Russet Burbank has a declining market share, but is still no small potatoes. In 2008, Idaho potato farmers planted 57 percent of their total acres with Russet Burbanks, while the variety accounted for 41 percent across the eight biggest potato-producing states.
Potatoes (Solanum tuberosum) originated in the Andes mountains, South America, about 7,000 years ago. In about 1570 the tuber made its way to Europe, but was thought to be poisonous as it is a member of the Nightshade family.