Briefly describe the difference between a system and a model
What will be an ideal response?
A model is any ordered, interrelated set of objects and attributes as distinct from their surrounding environment. A system represents an idealized part of the real world greatly simplified.
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Predict what happens to the brightness of a star with an orbiting extra-solar planet.
A. It brightens when the planet is between its star and us. B. Brightness is not affected by the orbit. C. It dims when the planet is between its star and us.
On June 21, which of these locations has the longest day?
a. Murmansk, USSR (69°N) b. Omaha, Nebraska (41°N) c. Kontiala, Mali (12.5°N) d. Nairobi, Kenya (1° S) e. Montevideo, Uruguay (35°S)
The Sun is a star in the ________ galaxy
A) Orion B) Milky Way C) Proxima Centauri D) Alpha Centauri E) Betelgeuse
Which of the following is predominantly found in East Asia?
A) Sino-Tibetan B) Altaic C) Dravidian D) Afro-Asiatic E) Austronesian