Apprentice beekeepers attend a class at the Luxembourg Gardens’ beekeeping school on April 15, 2015 in Paris. AFP PHOTO / ERIC FEFERBERG /Getty Images.
A mail box with the price for water stands on cement fence at a ranch owned by Rancho San Simeon LLC in Cambria, California, U.S., on Monday, April 13, 2015. Cambria, a seaside hamlet of vacation homes and wine bars, offers a glimpse of how far Californians must go to conserve water as the most populous U.S. state struggles through the worst drought in its history. Photographer: David Paul Morris / Bloomberg via Getty Images.
Birds follow a tractor as it tills a field prior to planting potato seeds on a farm in Boreham, U.K., on Thursday, April 16, 2015. U.K. government bonds rose, pushing 10-year yields down from the highest level in almost a month, as a report showed annual consumer prices were stagnant for a second month in March. Photographer: Chris Ratcliffe / Bloomberg via Getty Images.
Indian labourers prepare sheaves of wheat after harvesting the crop in a village at Patiala on April 19, 2015. Photo credit: STR / AFP / Getty Images.
Iowa: Landscapes From A Perennial Political Battleground State
A dirt road makes its way through farm land on April 13, 2015 in Decatur City, Iowa. Iowa is the first state in the nation to hold an electoral event in the nominating process of the President of the United States. Photo by Justin Sullivan / Getty Images.
Members of the Afghan security force use tractors to destroy an illegal poppy field in Maiwand district of Kandahar province on April 19, 2015. AFP PHOTO / Javed Tanveer / Getty Images.
First lady Michelle Obama joins local student in planting vegetables in the White House kitchen garden on the south lawn April 15, 2015 in Washington, DC. This is the seventh year in a row the first lady has planted a vegetable garden on the South Lawn to initiate a national conversation around healthy eating. Photo by Mark Wilson / Getty Images.
A picture shows a tulip garden forming Turkish traditional carpet pattern with 545.000 tulips on the 262 square-meters area, making it world’s largest carpet pattern, within the ’10th Tulip Festival’ at the historical Sultan Ahmet Square where hosts Hagia Sophia and Blue Mosque (Sultan Ahmet Mosque) in Istanbul, Turkey on April 18, 2015. Every April, approximately 20 million and 211 different kinds of tulips are planted in Istanbul’s parks, avenues, traffic roundabouts and open ground during the tulip season in Istanbul. Photo by Isa Terli / Anadolu Agency / Getty Images.
This picture taken on April 16, 2015 shows chickens standing amongst strawberries inside a greenhouse in Xiqiantou, a town near Wuxi in Jiangsu province. AFP PHOTO / JOHANNES EISELE / Getty Images.