What does the following element description actually mean? O
A) an oxygen atom with 6 protons and 12 neutrons
B) an oxygen atom with 6 neutrons and 12 protons
C) 6 oxygen atoms with 18 neutrons
D) 18 oxygen molecules with 6 neutrons each
E) none of the above
A
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A small thunderstorm cloud with virga falling out of its base and blowing dust at the ground
could warn of a severe hazard to an airplane because:a. this could be the first indication of a tornado b. it is likely that hail will soon begin to fall c. this could indicate an intense downdraft or microburst d. the airplane could be struck by lightning
Animals with rigid skeletons appeared abruptly in the fossil record at the beginning of the Paleozoic
Indicate whether the statement is true or false
Which of the following best explains why urbanization has led to larger and more frequent floods?
A. rainwater tends follow roadways and becomes more concentrated B. heat island effect of cities produces more frequent rains C. rainfall volume is naturally higher over areas where vegetation is more sparse D. large areas of land are covered with impermeable surfaces E. irrigation of yards and landscaping
Leadership is ________
A) considering knowledge and technologies to show environmental trends B) based on your own values and visions without focusing on outcomes or diversity C) action by you that changes the behavior of others D) based on your own values while focusing on outcomes that cause little environmental change E) actions by you without input from others