How does an increase in reactant concentration affect the rate of reaction? It leads to more frequent collisions, which increase reaction rate.
It leads to less frequent collisions, which increase reaction rate.
It leads to more frequent collisions, which decrease reaction rate.
It leads to less frequent collisions, which decrease reaction rate.

the answer is minerals.

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them