Chlorofluorocarbons have damaged layer of earths atmosphere

What was the great rift valley formed by

Why did the belgian parliament pass laws to decentralize its government? a. to increase trade with neighboring luxembourg b. to decrease the political power enjoyed by the flemish c. to enable belgium to join the european union d. to reduce tensions between belgium's two main ethnic groups

When you start from a given set of rules and conditions and determine what must be true you are using blank reasoning