Does the sentence "This act brought mostly cattle and sheep ranchers into Montana, many of whom grazed their herds on the Montana prairie for three years, did little to irrigate the land and then abandoned it without paying the final fees." provide a valid answer to the question "How much land did the Desert Land Act allot?"

A: no

Does the sentence "They also state that over 60 species of bird nest in central London and that their members have recorded 47 species of butterfly, 1173 moths and more than 270 kinds of spider around London." provide a valid answer to the question "The London Natural History Society has document how many species of butterfly?"

A: yes

Does the sentence "The Persian scholar Ibn Sina (Avicenna) (9801037) had more than 450 books attributed to him." provide a valid answer to the question "What subjects did Ibn Sina mainly write about?"

A: no

Does the sentence "While Mont Blanc was first climbed in 1786, most of the Alpine four-thousanders were climbed during the first half of the 19th century; the ascent of the Matterhorn in 1865 marked the end of the golden age of alpinism." provide a valid answer to the question "When was the ascent of the Matterhorn?"

A:
yes