Which of the following are hazards posed by volcanic eruptions? a. lava flows b. avalanches c. the release of toxic gases d. all of these

Which group of algae is characterized by unicellular organisms and includes some members that would be better classified as zooflagellates? euglenophytes red algae sporozoans green algae

How have high taxes on tobacco products impacted the number of people who use them? a. the number of tobacco users has increased. b. the number of tobacco users has decreased. c. the number of tobacco users has not changed. d. the number of adolescent tobacco users decreased, while the number of adult users increased

The same agricultural practices are used in every country of the world. select the best answer from the choices provided t f