TASK DEFINITION: In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.
PROBLEM: A major environmental concern known as topsoil erosion occurs when the topsoil layer is blown or washed away. Without topsoil, little plant life is possible. The estimated annual costs of public and environmental health losses related to soil erosion exceed $45 billion. Conventional agriculture encourages the depletion of topsoil because the soil must be plowed and replanted each year. Sustainable techniques attempt to slow erosion through the use of cover crops in order to build organic matter in the soil. The United States alone loses almost 3 tons of topsoil per acre per year. This is of great ecological concern as one inch of topsoil can take between 500 and 1,000 years to form naturally. On current trends, the world has about 60 years of topsoil left.

SOLUTION: when does top to bottom erosion take place

PROBLEM: Avengers: Infinity War was released on digital download by Walt Disney Studios Home Entertainment on July 31, 2018, and on Ultra HD Blu-ray, Blu-ray, and DVD on August 14. The digital and Blu-ray releases include behind-the-scenes featurettes, audio commentary, deleted scenes, and a blooper reel. The digital release also features a roundtable discussion between MCU directors the Russos, Jon Favreau, Joss Whedon, James Gunn, Ryan Coogler, Peyton Reed, and Taika Waititi.

SOLUTION: when does avergers infinity war come out on dvd

PROBLEM: In traditional festive legend, Santa Claus's reindeer pull a sleigh through the night sky to help Santa Claus deliver gifts to children on Christmas Eve. The commonly cited names of the eight reindeer are Dasher, Dancer, Prancer, Vixen, Comet, Cupid, Donner, and Blitzen. They are based on those used in the 1823 poem 'A Visit from St. Nicholas' (commonly called 'The Night Before Christmas'), arguably the basis of the reindeers' popularity.

SOLUTION:
what are the reindeers names on santa's sleigh