Answer:
Precession
Explanation:
Various stars will act as northern stars due to precession, as well as the stars and planets arrayed around the celestial equator (zodiac) will steadily change locations. Every 73 years, they move around one degree. For the remainder of our days, and for a few millennia later, Polaris would stay the North Star.
There is really nothing to know. All you have to use is context clues and common sense. We know some synonyms for direct are manage and handle. Indirect means not direct, right? And we can't handle or manage earth's interior (core), right? Therefore, the study of earth's interior is an example of indirect observation because we cannot directly manage it.
Answer:
Yucatán Peninsula in Mexico
Explanation:
It is called the Chicxulub Asteroid.
It seems you need to move the decimal three times over, then you round the number. So the answer would be 5.5 x 10^3.
The largest country in the world would be Russia, being as it has a total of 6,601,667 square miles. I Hope this helps :).
