The dominant language of South America is

What is the most important agent of erosion? A. wind B. moving water C. ice D. gravity

What is a barrier to entry

15. Which of the following does not increase carbon dioxide levels in the atmosphere? A. Photosynthetic organisms B. Burning fossil fuels C. Death of an organism D. Cellular respiration

Star 1 is 18 light years from Star 2 and 34 light years from Earth. If Star 2 explodes as a supernova, in how many years would the explosion be seen from Earth? 18 34 52 70

What's the capital of Asia

Why are Hondurans migrating to Mexico

True or False? Models may change as new discoveries are made.

When did Impressionism, as a movement, begin to fade out as an intellectual school? A.) End of 17th century B.) End of 18th century C.) End of 19th century D.) End of 20th century

Which of the following can be used to determine the compostion of a star? a. line spectra b. blackbody spectrum c. the star's magnetic field d. light from sunspots

The snow leopard is found in the southeastern mountains of central asia t or f