________ are dangerous, hot masses of ash and gas that travel down the flanks of a volcano
Fill in the blank(s) with correct word
Ash flows or Pyroclastic flows
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A horse gallops 10 km in 30 min with an average speed of
A. 30 km/h. B. more than 30 km/h. C. 10 km/h. D. 20 km/h.
Surface-level ocean currents are caused by
a. dense ocean water sinking b. cool ocean water rising c. warm ocean water exchanging with cool ocean water d. prevailing winds blowing over the ocean surface e. strong winds coming from warm coastal areas and traveling across the ocean surface
You a generally safe inside an automobile during a lighting storm because:a
the car's radio antenna will act as a lightning rod b. the rubber tires insulate you from the ground c. metal cars do not become electrically charged d. the metal car body will carry the lightning current around the passengers inside
Which of the following is the most specific taxonomic grouping shared by humans and killer whales?
A) Phylum B) Class C) Order D) Family E) Genus