What is the missing line of code? >>> info = {3:10, 4:23, 7:10, 11:31}
>>>
>>> info
{3: 10, 4: 23, 7: 10, 11: 31, 15: 23}

info. append({15:23})

info. update({15:23})

info. add{15:23})

info. insert({15:23})

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health? a. air quality data gathered by new instruments can be used to reduce exposure to pollutants. b. new technologies enable natural and human-made pollution sources to be located and monitored. c. air quality data gathered by new instruments can be used to predict trends in pollution over time. d. new technologies allow governments to make informed decisions about the regulation of pollution. (choose more than one)

17. implement the jvm dload instruction for the mic-2. it has a 1-byte index and pushes the local variable at this position onto the stack. then it pushes the next higher word onto the stack as well

The forerunner to cell phones, pdas, and smartphones was