The most unreliable variable in diagnosing the property
minerals such as quartz is their color as it is not consistent with the use of
such external factors. The color could change, that is why it is considered to
be unreliable in diagnosing some of the minerals.
It is called a river basin
False. I believe that Eastern Russia is considered part of the Far East. Southeast Asia consists of countries like Thailand, Indonesia, Cambodia, etc.
