Which of the following is true about ice sheets? a. They are the smallest type of glacier.

b. They flow in all directions.

c. They usually flow down valleys.

d. They are found only in high mountain areas.

The declining axolotl population in mexico city is an example of in overcrowded cities. a. the surpassing of support capacity b. changes to natural environments and native species c. the lack of safe homes and tenured spaces d. the effects of a growing urban heat island

Which revelation resulted from the observation of the spectrum of different galaxies? a. there were more galaxies whose spectrum was blueshifted b. there were no galaxies whose spectrum was redshifted c. there were more galaxies whose spectrum was redshifted d. there were no galaxies whose spectrum was blueshifted

The separation of northern ireland from the republic of ireland is an example of