Early Human and Prehistoric Cultures

Paleolithic literally means 'Old Stone Age' from Greek roots 'palaios' (old) and 'lithos' (stone). It represents the earliest period of human tool use, characterized by stone implements. This predates the Iron, Bronze, and later ages.

The Indus Valley Civilization (3300-1300 BCE) was one of the world's earliest urban civilizations, known for its advanced city planning, drainage systems, and standardized construction. Located in the Indian subcontinent, it flourished in areas now part of Pakistan and northwest India.

Mayan festivals honoring Ek Chuah, the cacao god, involved ritual exchanges of cacao as offerings. Archaeological evidence and ethnographic accounts show that gift-giving, particularly of cacao beans, was central to Mayan religious ceremonies. Option A (bathing in cocoa) and D (creation skits) are not documented practices, while mountain-top dancing (B) is not associated with this specific festival.

The invention of writing systems is generally accepted as marking the end of the Prehistoric Age and the beginning of recorded history. Without writing, we rely solely on archaeological evidence. Option C is correct.

Despite advanced metalworking skills, swords are conspicuously absent from Harappan archaeological findings. They used daggers, spears, bows and arrows, but not swords. This absence distinguishes Harappan civilization from contemporary Mesopotamian cultures where swords were present.

The Mayans honored their cacao god Ek Chuah with an annual festival in April. Historical accounts indicate that along with animal sacrifices, the celebration involved the exchange of gifts among participants, which was a common practice in Mayan religious festivals.

Hamites is the correct term. In biblical and historical ethnology, Ham was one of Noah's sons, and 19th-century ethnologists used the term 'Hamites' to classify peoples of North Africa. This classification is now considered outdated and scientifically inaccurate.

The first modern toothbrush with hog hair bristles in ivory handles was invented in China during the Tang Dynasty (around 618-907 AD). This design later evolved and spread to Europe. The natural bristles from hogs or horses were used until nylon bristles were invented in the 20th century.

The oldest known footwear, dated to approximately 8,000 years ago, consists of sagebrush bark sandals discovered in Fort Rock Cave in Oregon, USA. This predates the Indus and Mohenjodaro civilizations by thousands of years.

Neanderthal, when used as an adjective, means uncouth, primitive, or ill-mannered in behavior. It derives from Neanderthals (an extinct species of archaic humans) and is used metaphorically to describe someone whose behavior appears crude or backward.

The Inca Civilization used quipu - a system of knotted strings - for recording numbers and keeping records. This was their primary method of numerical record-keeping since they did not have a written language.

Around 3000 BC, both Babylonians and Egyptians began using advanced mathematics including arithmetic, algebra and geometry for practical purposes like taxation, construction and astronomy. This marked a significant advancement beyond basic counting and measurement.

Paleontologists study prehistoric life through the examination of fossils. This directly matches Jeremy's research on prehistoric animals and plants. Thanatologists study death and dying, saurologists would study lizards, and histobiologists is not a standard scientific specialization.

The Sumerians (ancient Mesopotamians) used a base-60 number system, which is why we have 60 minutes in an hour. This sexagesimal system influenced time measurement.

The four prehistoric ages of Tamil Nadu are: Old Stone Age (Paleolithic), New Stone Age (Neolithic), Metallic Age (Iron Age), and Megalithic Age. This sequence reflects the technological evolution from stone tools to iron working and finally to megalithic burial practices.