NEED HELP ASAP PLEASE WITH 4,5,6!

Dwarf galaxies are select one: a. relatively rare. b. not very bright c. mostly spiral shaped. d. none of these.

Ascientist and her team counted 200 individual deer in an area of 10 square kilometers. what is the population density?

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