Which of the following rock types is NOT characteristic of volcanic domes?
A. mixtures of pieces of the dome and ash from dome collapse
B. vesicular basalt with very large holes from dangerous gas
C. glassy volcanic rocks that are unstable over time
D. volcanic breccia formed by fracturing of the outer part of the dome
Answer: B
You might also like to view...
Protons in the nucleus of a helium atom
A. repel orbiting electrons. B. attract a pair of orbiting electrons. C. both of these D. neither of these
The National Academy of Sciences has estimated that 98% of the potential risk of developing cancer from pesticide residue on food grown in the U.S. could be eliminated if
a. the entire industrialized agriculture business switched to integrated pest management b. genetically modified foods were grown exclusively c. pheromone traps were used more effectively to capture pests d. EPA standards for pre-1972 pesticides were as strict as standards for later pesticides e. the government banned just one of the worst pesticides from use
During the process of excretion, ________ moves from capillaries into ________.
A. the filtrate; Bowman's capsule B. the filtrate; the proximal tubule C. blood; the distal tubule D. blood; the loop of Henle
Organisms that rely directly or indirectly on sunlight for energy include all of the following except ________.
A. animals B. eukaryotes C. chemoautotrophs D. heterotrophs E. photoautotrophs