How does a bacteriophage work.

Which property is used to identify the origin of an igneous rock? color density hardness crystal size

Texas has an impending storm, and california is experiencing a water crisis. match the technologies with the state that can use them to reduce the effects eddies natural hazards. texas is the storm cellar and the wood that is crisscrossed. california is the dam and the storage tanks

What is the name of the two satelites on mars