The answer is Radon. Radon is an odorless, colorless and tasteless gas. It is the heaviest among the noble gases. It is, in fact, radioactive. Radon is considered to be a health hazard. It is so radioactive that further studies become very difficult. When radon decays, radon progeny is produced. These new substances stick to the surfaces of dust particles in air. When inhaled may stick to the lung and airway walls.
If the rocks are layered on a fine scale
If the rocks are homogenous
If the crystals in the rock vary in size
C.) The environment is seldom affected by technological advances.
The answer is false.
In middle east countries, falconry is useful to Arabians way back 2000 years ago. The bird was traditionally used for hunting and it was a source of survival in the desert. The humans used its amazing ability to see great distances and to supplement their diet, catching the Habara, or similarly known as a wild turkey in the desert. That is why UAE makes the falcon as their national symbol. Camel is only used as transportation not as a means of survival.
The Human Development Index is a statistic composite index of life expectancy, education, and per capita income indicators, which are used to rank countries into four tiers of human development.
