Problem: Please answer a question about the following article about Green:
Unfortunately for those who wanted or were required to wear green, there were no good vegetal green dyes which resisted washing and sunlight. Green dyes were made out of the fern, plantain, buckthorn berries, the juice of nettles and of leeks, the digitalis plant, the broom plant, the leaves of the fraxinus, or ash tree, and the bark of the alder tree, but they rapidly faded or changed color. Only in the 16th century was a good green dye produced, by first dyeing the cloth blue with woad, and then yellow with reseda luteola, also known as yellow-weed.
Why were vegetal green dyes less than ideal?
A: they rapidly faded or changed color
Problem: Please answer a question about the following article about Biodiversity:
During the last century, decreases in biodiversity have been increasingly observed. In 2007, German Federal Environment Minister Sigmar Gabriel cited estimates that up to 30% of all species will be extinct by 2050. Of these, about one eighth of known plant species are threatened with extinction. Estimates reach as high as 140,000 species per year (based on Species-area theory). This figure indicates unsustainable ecological practices, because few species emerge each year.[citation needed] Almost all scientists acknowledge that the rate of species loss is greater now than at any time in human history, with extinctions occurring at rates hundreds of times higher than background extinction rates. As of 2012, some studies suggest that 25% of all mammal species could be extinct in 20 years.
How many plant species are close to extinction?
A: about one eighth
Problem: Please answer a question about the following article about Han dynasty:
One of the Han's greatest mathematical advancements was the world's first use of negative numbers. Negative numbers first appeared in the Nine Chapters on the Mathematical Art as black counting rods, where positive numbers were represented by red counting rods. Negative numbers are used in the Bakhshali manuscript of ancient India, but its exact date of compilation is unknown. Negative numbers were also used by the Greek mathematician Diophantus in about 275 AD, but were not widely accepted in Europe until the 16th century AD.
What were positive numbers portayed as in the treatise of the Nine Chapters on the Mathematical Art?
A: red counting rods
Problem: Please answer a question about the following article about Turner Classic Movies:
Each August, Turner Classic Movies suspends its regular schedule for a special month of film marathons called "Summer Under the Stars", which features entire daily schedules devoted to the work of a particular actor, with movies and specials that pertain to the star of the day. In the summer of 2007, the channel debuted "Funday Night at the Movies", a block hosted by actor Tom Kenny (best known as the voice of SpongeBob SquarePants). This summer block featured classic feature films (such as The Wizard of Oz, Sounder, Bringing Up Baby, Singin' in the Rain, Mr. Smith Goes to Washington, The Adventures of Robin Hood and 20,000 Leagues Under the Sea) aimed at introducing these movies to new generations of children and their families.
Who hosted Funday Night at the Movies?
A:
Tom Kenny