Which of the following events would most likely cause ecological succession in an ecoregion located in South Texas? Volcanic eruption

Blizzard

Drought

Earthquake

What causes the cyclical changes in the appearance of the moon?

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

Because its government strictly controls its economy, north korea has a economy. a. command b. mixed c. traditional d. free market