We live in the _ eon, of the _ era, of the _ period, of the _ epoch

How does the parallax of a nearby object compare to that of an object farther away?

What would be the distance of all the planets to the sun in astronomical units?

Which of the following best describes the purpose of a nation’s boundaries? a. to limit the movement of goods and people b. to make it easier for cartographers to create maps c. to make the movement of goods and people easier d. to prevent other countries from invading territory