Methane. Methane is an odorless, colorless flammable gas. It is used primarily as fuel to make heat and light. It is also used to manufacture organic chemicals. Methane can be formed by the decay of natural materials and is common in landfills, marshes, septic systems and sewers.Methane can form an EXPLOSIVE mixture in air at levels as low as 5 percent.t is also used to manufacture organic chemicals. Methane can be formed by the decay of natural materials and is common in landfills, marshes, septic systems and sewers. Methane can form an EXPLOSIVE mixture in air at levels as low as 5 percent.
â¢ PALEOLITHIC AGE (noun). The noun PALEOLITHIC AGE has 1 sense: 1. second part of the Stone Age beginning about 750,00 to 500,000 years BC and lasting until the end of the last ice age about 8,500 years BC. Familiarity information: PALEOLITHIC AGE used as a noun is very rare.
The Paleolithic period, from about 2 million BC to 10000 BC, is called the Old Stone Age. It was a time when humans used flint, stone, and bone tools, and found their food by hunting, fishing, and foraging plant foods.he Paleolithic people had domesticated fire about 500,000 years ago. They created mythic religious ideas to explain birth, sickness, death, the sun, the moon, rain, wind, thunder and lightening. The Neolithic Age was also known as the New Stone Age.