Question: There are three ways an existing treaty can be amended. First, formal amendment requires State parties to the treaty to go through the ratification process all over again. The re-negotiation of treaty provisions can be long and protracted, and often some parties to the original treaty will not become parties to the amended treaty. When determining the legal obligations of states, one party to the original treaty and one a party to the amended treaty, the states will only be bound by the terms they both agreed upon. Treaties can also be amended informally by the treaty executive council when the changes are only procedural, technical change in customary international law can also amend a treaty, where state behavior evinces a new interpretation of the legal obligations under the treaty. Minor corrections to a treaty may be adopted by a proces-verbal; but a proces-verbal is generally reserved for changes to rectify obvious errors in the text adopted, i.e. where the text adopted does not correctly reflect the intention of the parties adopting it.
Is there an answer to this question: In addition to the often long and protracted nature of treaty renegotiation, what negative outcome might result from the process?

Answer: some parties to the original treaty will not become parties to the amended treaty

Question: The most famous groups are the chirigotas, choirs and comparsas. The chirigotas are well known witty, satiric popular groups who sing about politics, new times and household topics, wearing the same costume, which they prepare for the whole year. The Choirs (coros) are wider groups that go on open carts through the streets singing with an orchestra of guitars and lutes. Their signature piece is the "Carnival Tango", alternating comical and serious repertory. The comparsas are the serious counterpart of the chirigota in Cadiz, and the poetic lyrics and the criticism are their main ingredients. They have a more elaborated polyphony that is easily recognizable by the typical countertenor voice.
Is there an answer to this question: The chirigotas, choirs and comparsas are the most famous of what?

Answer: groups

Question: Brahmi evolved into a multiplicity of Brahmic scripts, many of which were used to write Sanskrit. Roughly contemporary with the Brahmi, Kharosthi was used in the northwest of the subcontinent. Sometime between the fourth and eighth centuries, the Gupta script, derived from Brahmi, became prevalent. Around the eighth century, the Sarada script evolved out of the Gupta script. The latter was displaced in its turn by Devanagari in the 11th or 12th century, with intermediary stages such as the Siddham script. In East India, the Bengali alphabet, and, later, the Odia alphabet, were used.
Is there an answer to this question: What script was used in the northwest of India?

Answer: Kharosthi

Question: Hunting and gathering was presumably the subsistence strategy employed by human societies beginning some 1.8 million years ago, by Homo erectus, and from its appearance some 0.2 million years ago by Homo sapiens. It remained the only mode of subsistence until the end of the Mesolithic period some 10,000 years ago, and after this was replaced only gradually with the spread of the Neolithic Revolution.
Is there an answer to this question: What began replacing hunting-gathering at the end of the Mesolithic period?

Answer:
Neolithic Revolution