QUES: One disadvantage of the phalanx was that it was only effective when fighting in large, open spaces, which left the Romans at a disadvantage when fighting in the hilly terrain of central Italian peninsula. In the 4th century BC, the Romans abandoned the phalanx in favour of the more flexible manipular formation. This change is sometimes attributed to Marcus Furius Camillus and placed shortly after the Gallic invasion of 390 BC; it is more likely, however, that they were copied from Rome's Samnite enemies to the south, possibly as a result of Samnite victories during the Second Samnite War (326 to 304 BC).

In what century was the phalanx formation finally discarded by the Roman people?
What is the answer?
ANS: 4th century BC
QUES: At age eight, Beyonce and childhood friend Kelly Rowland met LaTavia Roberson while in an audition for an all-girl entertainment group. They were placed into a group with three other girls as Girl's Tyme, and rapped and danced on the talent show circuit in Houston. After seeing the group, R&B producer Arne Frager brought them to his Northern California studio and placed them in Star Search, the largest talent show on national TV at the time. Girl's Tyme failed to win, and Beyonce later said the song they performed was not good. In 1995 Beyonce's father resigned from his job to manage the group. The move reduced Beyonce's family's income by half, and her parents were forced to move into separated apartments. Mathew cut the original line-up to four and the group continued performing as an opening act for other established R&B girl groups. The girls auditioned before record labels and were finally signed to Elektra Records, moving to Atlanta Records briefly to work on their first recording, only to be cut by the company. This put further strain on the family, and Beyonce's parents separated. On October 5, 1995, Dwayne Wiggins's Grass Roots Entertainment signed the group. In 1996, the girls began recording their debut album under an agreement with Sony Music, the Knowles family reunited, and shortly after, the group got a contract with Columbia Records.

What record company first signed Beyonce's group and later cut them?
What is the answer?
ANS: Elektra Records
QUES: Animals typically use the color green as camouflage, blending in with the chlorophyll green of the surrounding environment. Green animals include, especially, amphibians, reptiles, and some fish, birds and insects. Most fish, reptiles, amphibians, and birds appear green because of a reflection of blue light coming through an over-layer of yellow pigment. Perception of color can also be affected by the surrounding environment. For example, broadleaf forests typically have a yellow-green light about them as the trees filter the light. Turacoverdin is one chemical which can cause a green hue in birds, especially. Invertebrates such as insects or mollusks often display green colors because of porphyrin pigments, sometimes caused by diet. This can causes their feces to look green as well. Other chemicals which generally contribute to greenness among organisms are flavins (lychochromes) and hemanovadin. Humans have imitated this by wearing green clothing as a camouflage in military and other fields. Substances that may impart a greenish hue to one's skin include biliverdin, the green pigment in bile, and ceruloplasmin, a protein that carries copper ions in chelation.

What chemicals have humans used in their camouflage?
What is the answer?
ANS:
unanswerable