What is the primary mission of the orbital debris observatory? a. it is used as part of our national security to listen in on communication. b. it is used to make three-dimensional models of the galaxies. c. it locates spy satellites and decodes secret military languages. d. it locates old satellites, lost equipment, and space-related garbage.

the correct answer is d. It locates old satellites, lost equipment, and space-related garbage.

Explanation: Debris can be dangerous for satellites or spacecraft that's why   more than 500,000 pieces of debris, or “space junk,” are tracked as they orbit the Earth. They all travel at speeds up to 17,500 mph.

herodotus taught this. herodotus was an ancient greek historian who was born in halicarnassus in the persian empire. he is known for having written the book the histories, a detailed record of his "inquiry" on the origins of the greco-persian wars.

the authority to tax.